Episode Guide

Season 1 (2011 - 2012)
The first season premiered in the US on May 3, 2011 and ended March 13, 2012 almost a year later. The world premier of the show was on May 2, 2011 in the UK with the episode "The Mystery".

Season 2 (2012 - 2013)
The show was renewed for a second season two months before the show had premiered in the US. The season began on August 7, 2012 and ended on December 3, 2013, over a year later.

Season 3 (2014 - 2015)
A third season was green-lit on October 5, 2012. Like season two, it will have 20 episodes (40 segments). It premiered on June 5, 2014 in the US, and premiered September 2014 in the UK.

Season 4 (2015)
A fourth season was green-lit on June 2, 2014. Like season two and three, it has 20 episodes (40 segments). It premiered on July 10, 2015 in the US.

Season 5
A fifth season was green-lit on June 2, 2014. Like season two, three, and four, it will have 20 episodes (40 segments). The air date for the season is currently unknown.