Mizuno

This season 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. A sub-plot also focuses on Sari as she searches for her father, while learning that there is no record of her existence of any means. Also, Blackarachnia (originally Elita One) has been reduced to a minor recurring character, only appearing in one episode of the entire season (Black Friday).

The third season began on March 14, 2009 with the three-part premiere, Transwarped, and ended on May 23, 2009. This season following the events of Transwarped focused on the Autobots' attempt to reach Cybertron in order to warn the Autobot High Council of Shockwave, who has been masquerading as Autobot Intelligence Officer Longarm Prime. Meanwhile, Megatron, Starscream, Shockwave (who replaces Blitzwing as a main character), and Lugnut plan to use the colossal Autobot Omega Supreme for constructing clones of him (dubbed as Lugnut Supremes, as they appear similar to Lugnut).

生日没有任何人祝福，这样过着寂寞生活的大学生次郎（小出惠介饰）在20岁生日那天突然遇到了生命中的那个“她”（绫瀨遥饰）。二人共渡了一个美好的夜晚。是夜，“她”从次郎的眼前消失了。一年后的生日，本以为还将回归寂寞生活的次郎再次遇到了“她”。这一次，“她”讲出了惊天的故事：“我是未来次郎你创造的机器人，回到过去来保护你免受灾难。”就这样，“她”住进了次郎家中，开始了与次郎的同居生活。灾难似乎没有离开次郎的意思，但次郎与她的感情已在其中萌发。爱与时间的感人故事，守护未来的约定，开始今天的生活。