The episodes of Transformers: Animated are split into a set of 3 seasons, 13 episodes in each with the first season bearing a special movie-length (later divided into a 3-episode showing) beginning. An episode list for the first two seasons (a combined total of 26 episodes) has been released through Cartoon Network's website. Both the series' first season and the entire series itself began with "Transform and Roll Out", a 90-minute movie special starting point later broken up into three episodes for re-runs. Following the debut of the movie on December 26, 2007, the series properly began on January 5 next year. The series returned with the third season on March 14 1 year after 2008 in the US and Canada. Series overview Episodes Season 1 (2007–08) The first season (consisting of sixteen episodes - a movie-length beginning later divided into a 3-part story and 13 ordinary episodes afterward) began on December 26, 2007, with its movie-length/later three-part premiere "Transform and Roll Out", and ended on April 5, 2008, with part 2 of "Megatron Rising". The season's main theme following "Transform and Roll Out" centered primarily around Megatron's return after his defeat during his first battle with Optimus Prime. Meanwhile, the Autobots (Optimus, Bumblebee, Ratchet, Prowl, and Bulkhead) learn more about 22nd-century Earth from eight-year-old human Sari Sumdac, who has an encounter with the AllSpark that transforms her security key into a mystical Cybertronian artifact with vast powers. At the same time, the Autobots battle members of Megatron's old crew, including Starscream, Blackarachnia, Lugnut, and Blitzwing, while befriending some of the local humans, including Sari, her father, Professor Isaac Sumdac (who is tricked into helping Megatron) and machine-hating police officer Captain Fanzone. Season 2 (2008) This season (having thirteen episodes) began merely two whole weeks after the first season had ended, on April 19, 2008, with the airing of "The Elite Guard", and ended on July 5, 2008, with the two-parter, "A Bridge Too Close". The season revolved mainly around the Autobots in the aftermath of Megatron's return, trying to restore the city and their image. Meanwhile, Megatron, Lugnut, and Blitzwing have captured Prof. Sumdac in order to build a Space Bridge, hoping to use it to conquer a weakened Cybertron from within, while Starscream tries to get his revenge against Megatron. A sub-plot also focuses on Sari as she searches for her father, while learning that there is no