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…

汽车人跟霸天虎的战争已经结束了很久。擎天柱和汽车人忙于修复战后破损的太空桥。此时，发现了火种源。然而，收到火种源信号威震天攻击他们的太空飞船。他们的太空飞船在球地坠毁。火种源打碎了以后，很多火种源的碎片被散落到地球各个角落。在底特律，擎天柱和汽车人肩负着保护人类的重任，也肩负着在霸天虎之前找到所有的火种源片的重任，因为…