The episode starts with Gumball noticing a package on their porch. After bringing the package inside, Gumball asks the rest of the family if any of them ordered anything recently, to which they claim they have not. Gumball wants to open the box, but Anais stops him, pointing out that purposely opening someone else's mail is illegal. Instead, the Wattersons come up with stories on the box's potential contents.
Gumball says that there is a teleportation gun. In a story, he uses the teleportation device to complete certain tasks, such as taking out the garbage, using the restroom without getting off the couch, and being able to move without walking. However, concern arises when a face appears on his nose. Nicole takes Gumball to a doctor, who explains the the device is causing a mutation in his DNA. Gumball, hoping to exploit the situation to get superpowers, attempts to teleport with different animals and objects only to deform and inherit less desirable traits. Darwin suggests that Gumball should get superpowers from animals that do not make him look like "that," and ultimately, Gumball teleports with a cockroach, much to Anais' disgust.
Nicole imagines that the box contains a briefcase full of money. While the family all fantasizes about what to do with the money, Nicole rushes Richard and the kids out of the house and into the car. Anais asks Nicole where she is taking them, after which she points out that the money is likely connected to a hitman, forcing them to go on the run. They try to lay low in a motel, but are ultimately caught by the hitman and pursued. However, Anais realizes that they are being tracked by the hitman through a tagging device in the briefcase, and she throws it off of a cliff. The hitman falls and crashes, then explains how the Wattersons will always be hunted and can never return back to their own lives. Nicole just replies that they are now millionaires. Hunted, fugitive millionaires.
Anais partially sides with Nicole, pointing out how the box's contents could be something really dangerous and argues that maybe the box was never meant to be opened. She then imagines that it unleashed the zombie apocalypse, as told in the form of a video log from a clipboard man. Elmore's infrastructure had collapsed and the majority of the population were now zombies. As he is dragged away, presumably to be consumed by zombies, he screams that he wished he knew how the virus broke out. It is then revealed that seven weeks prior, Richard opened up the box to find a biohazard gun. Presuming it to be a squirt gun, he proceeded to spray it on his family.
Richard imagines that the box contains a phone. It rings, causing him to confusedly pick it up, after which the person on the other side says "Lazarus." A flashback reveals that Lazarus is a secret codeword implanted in Richard's mind to allow him to use it to its full potential. He is then given the assignment of saving the president, who is about to be kidnapped. Richard uses his car to block a missile launched from a bazooka, uses his self-destructing phone to eliminate one of the thugs, and defeats the other with martial arts. He rescues the president and is about to kiss him, but Gumball interrupts, complaining that even if Richard's mind was set to its full potential, it would not equate to anything. It then shows that Richard does not hang up the self-destructing phone, which subsequently explodes on him, he is still in the car when the missile was fired, and a thug got ahold of the president. Richard attempts to intervene by kissing the thug and hurting the president. Immediately after, though, he realizes he got the order wrong, but is quickly knocked out.
Darwin believes the box could simply be a box. Gumball replies how it would be a huge letdown. Darwin is about to break into song about the box's true potential, but Gumball stops him by grasping the camera as it begins to pan up.
The family ultimately fight over the box and whether or not they should open it, but accidentally throw it out the window. After almost being run over a series of times, the box is ultimately struck by lightning, effectively turning it to ash.
The next day, Mr. Robinson appears at their door, explaining he told the mailman to leave his mail at the Wattersons' if he was not home. He asks if they have it, to which they claim not to have seen it. As Mr. Robinson is about to leave, Gumball asks what was in the box. He replies that they do not want to know, but Gumball prods at him before he admits that the package contained a cream for a horrible skin rash that he has. Gumball says Mr. Robinson was right about him not wanting to know, ending the episode.
The zombies dragging the Clipboard Man back references the 2007 horror film "REC."
Richard's codename, Lazarus, is in reference to the Biblical character of Lazarus of Bethany, who Jesus brings back to life in The Gospel of John. The name is frequently used in science fiction for characters who experience a similar restoration of life (in this case, the restoration of Richard's memory).
[The episode starts in the Wattersons' living room. Gumball, Darwin, and Anais, are sitting on the couch, each sibling exhibiting an expression of boredom. The doorbell rings, but when Gumball answers the door, all he finds is a nondescript, sealed cardboard box. Curious, he brings it inside. In the meantime, his parents have entered the room]
Gumball: Did anyone order anything?
Richard, Nicole, Darwin, and Anais: Nah.
Richard: This was the credit card company's answer when I asked if I can order things online.
[Richard holds up the telephone, and hysterical laughter is heard coming from its speaker]
Richard: It's been like that for three days. I think they're working in shifts.
Gumball: [Puts the box on the coffee table] Well, it was delivered to our door, so...
[Gumball reaches for it, but Anais grabs both of his wrists. A third hand appears from below, slapping him on the cheek]
Gumball: [Confused] Uh-eh?
Anais: Opening other people's mail is a crime!
Gumball: [Peeved] Oh, why is there always a law against everything I wanna do?
Anais: Because the last thing you wanted to do was move into the supermarket so you could eat for free.
Gumball: Uh, if the food enters your body and exits it while it's still in the supermarket, it's technically not stealing.
Darwin and Anais: Hmm.
Gumball: Come on! Am I the only one who wants to open the box?
Richard: Opening other people's mail is like staring at the sun. The more people tell you you shouldn't do it, [Yearning] the more you just gotta.
Nicole: Richard, we're over here.
Richard: Oh, yeah, sorry. [Faces the wrong direction again]
Nicole: Now kids, there's plenty of fun things we could do to take our mind off opening the box. Just think outside the box. Play some music on the boombox, maybe go watch a boxing match, [Loses control] or just open the box, the box, OPEN THE BOX!
[Richard and Darwin hold Nicole back, despite her frenzied attempt at the parcel. She calms down as soon as Gumball picks the box up and shakes it]
Gumball: Wait, I think I know what it is. It's a teleportation gun.
Anais: How could you possibly know what a fictional object sounds like?
Gumball: Uh, what does a laser sword sound like?
[Richard, Nicole and Darwin mimic lightsaber noises]
Gumball: Case closed. Box open.
Anais: We're not opening it!
Gumball: Oh come on! Think about how this can benefit society and enrich our lives...
["Lives" echoes as the show enters his imagination]
[Gumball is on his bed, reading a comic book, when Nicole brings him a bag of trash]
Nicole: Gumball, I told you to take out the garbage.
[Putting the book down, he grabs the bag, then pulls out a teleportation gun. With it, he first creates a portal on his bedroom floor, then shoots one out the window, above the trash cans. Gumball sends the bag through, and it lands atop a kid riding by on a tricycle]
Blue Humanoid: Ah! [Groans; Collapses]
[Next, Gumball and Darwin are on the sofa, playing video games. Having positioned himself so that he is partially sitting inside a portal, Gumball has a smug look on his face. His brother, however, is understandably concerned, as the second portal is located over the toilet]
Darwin: I'm not sure if I'm comfortable with this.
Gumball: Speak for yourself.
[Later, Nicole is washing dishes in the kitchen. Gumball approaches her by placing portals on the floor, one ahead of the other, and passing through them. In the center of the kitchen, he ceases his progression, merely transferring back and forth between the two portals instead]
Gumball: Hi, Mom.
Nicole: [Turns around] What are you doing?
Gumball: I just found a way— [Teleports] to avoid walking.
Nicole: Are you sure that thing is safe?
Gumball: I think so. [Teleports] What makes you say that?
Nicole: [Catches him midair] Uh, probably that weird thing on your nose.
[A close-up reveals that his nose resembles a humanoid face. Nicole then takes her son to Elmore Hospital]
Bandage Doctor: It seems teleportation is dangerously affecting your DNA.
Gumball: So you're saying I'm getting superpowers? [Flexes his arms]
Bandage Doctor: Mm, no. That's a rather specific interpretation of what I just said.
Gumball: But you're not saying that I won't.
Bandage Doctor: Indeed... But I would say there is a ninety-nine point nine percent chance you will turn into a cyst-like pile of flesh with tongues where there shouldn't be tongues.
Gumball: [Dismayed] Oh. Uh, right. I... I understand.
Bandage Doctor: Good. Finally.
Gumball: [Excited] So you're saying there's a zero point zero one percent chance that I could get superpowers! [Opens a portal; Hops in]
Bandage Doctor: No-no-no-no!
[Back home, Gumball is alone in his bedroom, when Darwin walks in on him]
Darwin: Hey, dude. [Startled] Whoa-ho-ho-hoa! Looks like you've been teleporting... a lot.
[Gumball is shown to have undergone a horrific mutation. His face now swollen and covered in pustules, he has also sprouted a third arm, as well as a reptilian tail. An egg emerges from a hole on the side of his head, and drops to the floor]
Darwin: [Disturbed] Whoa. What's that?
Gumball: I've been trying to get superpowers. I wanted to fly, so I took a bird through the portal. But instead, now I can lay eggs. Then I tried to get invisibility, so I took a chameleon through, [Expels a larger egg] and now I can lay chameleon eggs. And then I tried to get super jump, so I took a frog through, and...
Darwin: Now you can lay...
[Darwin is revolted, as his brother produces a pile of frog eggs and tadpoles]
Gumball: Uh, yeah. So, uh, I decided to take something that couldn't lay eggs, and... ta-da! [Pulls an item from his pocket]
Darwin: Ah! A laser pointer. Did it work?
Gumball: Sure did. Check this out. [Emits green lasers from his eyes] Laser vision!
Darwin: [Unimpressed] Oh, great. Now I can see exactly where you're looking. But, maybe you should focus some of your efforts on the aesthetic side of superheroes. You know, maybe look a little less like... uh... that. [Gestures at Gumball]
Gumball: You're right. I need to merge with something that looks super cool.
[Downstairs at the dinner table, Gumball's family are shying away, disgusted by his insectoid transformation. Spitting a corrosive substance, he dissolves both food and tableware before consuming it via his proboscis]
Richard: [Interrupting] Okay, wait a minute. I'm just gonna say what we're all thinking.
[Gumball's fantasy ends]
Anais: Please do.
Richard: Are you gonna finish that fictional food that's on your plate?
Anais: What?! No! Why did you choose to merge with a cockroach?
Gumball: Just imagine what I could do with the powers of a nuclear resistant parasite.
Anais: Repel girls even more?
Nicole: [Grabs the box] Oh, I still don't know what it is, but I know what I wish it was.
[The Wattersons gather around the box and open it. Their faces light up with joy over the many stacks of cash contained within]
Nicole: Whoo! We're rich! [Throws some money in the air] We never have to worry about the end of the month again!
Gumball: I could get a submarine to school every day!
Darwin: But there's no water between here and school.
[Nicole holds the box under one arm, then collects her kids with the other]
Gumball: We'll buy some!
Nicole: Exactly! [Carries them out the front door; Returns for Richard]
Richard: I can finally call myself retired instead of unemployed!
[Nicole pushes him outside, and they all pile into the car]
Nicole: Come on, let's go. [Drives away]
Anais: Mom, where are you taking us?
Nicole: You see, such a large amount of cash is bound to belong to somebody shady, and it's very likely they'll— [Gets rear-ended] send someone to retrieve it.
[The other car pulls up beside them]
Gumball: Wait! So now we're on the run from a hitman?!
[Nicole rams the vehicle, causing him to crash into a parked car. She accelerates, putting some distance between them. Up ahead, there is a railroad crossing, its flashing lights and lowered gate indicative of the imminent train. Her family screams as she breaks through the barrier and crosses the tracks just in the nick of time. Having temporarily escaped the hitman, they bunker down for the night at a small motel]
Anais: So now we have to live everyday like it's our last?
Nicole: Yes! But isn't that a good philosophy to have? Carpe diem.
[The Wattersons are frightened when the hitman punches through the door]
Gumball: Get back! Run!
[He unlocks the door and kicks it open, but they have already gone out the window. The family heads into the desert, running for their lives, while the hitman drives after them using a tracker]
Anais: I think I know how he's tracking us!
Richard: I'm sorry! I'm just so scared!
Anais: What the?! Not that. There must be some kind of tracking device in the money.
[A cliff edge preventing them from going any further, Nicole searches the box for the device. She quickly locates it and hurls it into the chasm. The five of them move off to the side, as the hitman follows the tracker straight over the edge. There is an explosion, and the Wattersons approach the burning wreckage with the hitman trapped inside]
Hitman: My employers will never give up. There will be another man after me. Then another, and another after that. You will never find peace.
Nicole: Yes, but we're millionaires.
Hitman: You'll never get back to your old life. You'll be hunted.
Nicole: [Happily pats the box] Hunted millionaires.
Hitman: You will never be able to trust anyone. You'll be fugitives.
Nicole: [Whispering] Fugitive millionaires.
[Anais frees the box from Nicole's grasp, ending her reverie]
Anais: I agree with Mom on one thing. What's inside this box is clearly evil.
Darwin: What? Why?
Anais: Because history has proven that mysterious containers always bring misery. Pandora's Box? The Lost Ark? That six-month-old takeout box at the back of the fridge? My point is, what if this box was never meant to be opened? What if it was...
[A Clipboard Man is in a laboratory, speaking into a video recorder. Behind him, some zombies are trying to find a way inside the room]
Clipboard Man: It's been seven weeks since the infection began, and I... I still haven't found a cure. They've taken over everything.
[Large fires are seen burning throughout Elmore. Somewhere in the city, a group of undead have Gary Hedges trapped in a phone booth]
Clipboard Man: [Narrating] Our infrastructure has collapsed, the people are on their own.
Payphone: Hello! You have reached the mailbox of [Inhuman growl] Police Station. All our officers are busy consuming flesh of the living at the moment, so please take the law into your own hands.
[The zombies break through the glass, swarming Gary as he screams]
Gary: Oh, wait up.
[They pause, allowing him to hang up the phone and collect his change]
Gary: Ah, cool! [Resumes screaming]
Clipboard Man: Most of the population is now contaminated. Those that haven't transformed yet were already zombies anyway.
[Neck Beard is texting mindlessly, unaware of the world around him. At the school, Tobias fearfully runs to the washroom to hide. He hears a noise from one of the stalls, and backs away as the door opens]
Tobias: Ahh! Huh?
[A pair of legs hops from the toilet seat and leaves the room. Tobias turns to the sink and gasps at the sight of a zombie washing its hands. It looks at him and cackles, then pulls him to the floor]
Clipboard Man: The world as we know it is coming to an end.
[In outer space, a zombified planet Earth is attempting to bite the moon]
The Moon: Get off, get off, get off! [Orbits around] Get off, get off, get off!
[Back at the lab, Clipboard Man is still recording himself]
Clipboard Man: If only I'd known how the virus got out, maybe the infection could have been prevented. [Gets dragged off-screen] How did it all staaa—
[The video cuts to static, leading to a flashback of Richard finding a biohazard container inside the box. In the container is a medical injector gun and several vials of a green liquid]
Richard: Oooh! Squirt gun!
[Jazz cue plays]
[Richard playfully sprays his family with the substance, to Anais' horror, and they return to reality]
Richard: Like an accordion made outta bread, or a remote controlled trumpet.
Darwin: Uh, what?
[Richard pulls a cellphone from the otherwise empty box. It immediately rings, and he answers]
Richard: [Nervous] Yes?
Operative: Lazarus. [Echoes]
[Something triggers within Richard, and he recalls being strapped to a hi-tech chair. A shadowy figure is standing before him]
Operative: Our scientists have inserted an implant allowing you to use the capacities of your brain at one-hundred percent, making you the ultimate weapon. We will now erase your memory and place you under a false identity until it is time for your mission. Your activation code word is... Lazarus.
["Lazarus" echoes again, and Richard is now driving down the road while holding the phone to his ear]
Operative: Your mission is to save the president. Please hang up. This phone will self-destruct in ten seconds.
[The timer on the cellphone counts down, and Richard accelerates. Up ahead, the president's vehicle is heading towards him. Somewhere in-between, a masked figure prepares to fire a bazooka at the president. Richard drives past him and causes his car to spin out. He skillfully exits the vehicle while it is still in motion, and it acts as a shield to stop the rocket. His phone starts to beep rapidly, and he tosses it at the terrorist, blowing him up. A second masked man charges him, but is quickly dispatched of in hand-to-hand combat]
Richard: [Opens the car door] Mr. President, are you okay?
The President: [Timid] I was so scared.
Richard: [Softly] Don't worry, you're safe now.
[Dreamy music plays, and they gaze longingly into each other's eyes. Richard pulls him into an embrace, but their imminent kiss is interrupted by Gumball]
Gumball: Uh, hang on. No offense, Dad. It sounds cool that you could use the full power of your brain, but a hundred percent of nothing, is still nothing.
[The scenario replays, putting Richard in the driver's seat once more]
Operative: Please hang up. This phone will self-destruct in ten seconds.
Richard: [Jovial] No, you hang up.
Operative: I'm serious. Please hang up.
Richard: [Giggles] No, you first.
Operative: This is a direct order! Please hang up!
Richard: All right, we'll do it at the same time. One... two—
[The cellphone explodes in his hand, causing the car spin out like before. However, when Richard tries to get out of the moving vehicle, his seat belt pulls him back in and he is hit by the rocket. He stands up, groans, then runs at the masked man who is going after the president]
Richard: Stop! [Kisses the terrorist; Beats up the president] No, wait!
[The other terrorist taps him on the back. Richard turns around, and is punched in the face. He blacks out, returning to the living room]
Richard: We need to get this box back to the right person! The president has to be saved! And kissed!
Darwin: [Takes the box from Richard] What if it was just a box?
Gumball: That would be a huge letdown.
[Whimsical music plays in the background]
Darwin: Think about it. A cardboard box could be a spaceship. A time-machine. [Singing] A pirate boat fighting a giant squid, if you look at it through the eyes of a kid...
[The camera starts to tilt up, but Gumball intervenes, putting an end to the song]
Gumball: [Angry] I said it would be a huge letdown!
Darwin: I don't care what's inside it, I just want the box.
Anais: We need to destroy it!
Gumball: I saw it first!
Nicole: It's mine!
Gumball: Come on!
[Shouting indistinctly, the Wattersons fight for the box, and in the process it is thrown through the picture window. Their battle continues outside in the pouring rain, until a flying kick from Nicole sends the parcel onto the street. The family watches from the sidewalk as numerous vehicles pass by. Together, they gasp, then sigh in relief after each near-miss. But just as the traffic clears, a bolt of lighting obliterates the box and its contents. Eventually, the rain stops, after which someone rings their doorbell. Gumball opens the door, gasps, then runs to give Mr. Robinson a hug]
Gumball: [Hushed] My favorite.
Gaylord Robinson: [Pushes Gumball away] Have you guys received a package by any chance? I told 'em to leave it here if I wasn't home.
[Gumball is instantly joined by the rest of his family, and they all gasp in unison]
Nicole: [Nervous] Oh, uh, I don't think so.
Gaylord Robinson: Eh, never mind. [Walks away]
Gumball: Wait! [Grabs his arm] Maybe we opened it by mistake... What was inside?
Gaylord Robinson: You don't wanna know.
Gumball: Trust me, we really do.
Gaylord Robinson: Okay, you know that rough skin you have on your elbow? Well imagine that, but a bit scalier, and spreading over your entire... place that should be soft. Now, imagine if that skin also got marinated in vinegar and microwaved, and hair somehow got trapped under a layer of that skin, and the hair kept growing. Under this kinda blister that's sort of filled with some butter-colored oily matter, and then it starting sweating, kinda like cheese, but on live meat, until it hardened into a flaking crust.
[The Wattersons are speechless, sharing a look of revulsion]
Gaylord Robinson: Well, the box had some cream in it for that.