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").
梅·惠特曼 劳伦·莫特 麦克·辛 帕梅拉·阿德龙 刘玉玲 雷文-西蒙尼 克里斯汀·肯诺恩斯 安吉拉·巴蒂斯 罗伯·鲍森 杰夫·贝内特 杰西·麦卡尼 卡拉·迪伦 费斯·普林斯 鲍伯·伯根
Kiko Jáuregui 因阿基·贝拉尔特 Aintzane Krujeiras José Vera Ander Vildósola Gala 坎迪多·乌兰加 Xavier Alkiza Jon Samaniego Martín Zabala Mañu Elizondo Jesús Izeta Mikel Fernández Asier Hernández Eduardo Gorriño Vito Rogado Jose Kruz Gurrutxaga
吉姆·拜恩尼斯 加里·切克 伊恩·詹姆斯·科里特 大卫·卡耶 Campbell Lane 史葛·麦克尼尔 柯林·默多克 Richard Newman 维努斯·特雷佐