空灵之境2

　　Dan Halen's most recent business venture takes off when he advertises Rusty's chalk art as cave drawings created by ancient aliens.

　　在被小丑又一次充当替罪羊后，被蝙蝠侠（戴德里克·巴德 Diedrich Bader 配音）抓进了阿卡姆疯人院的哈莉奎茵（凯莉·库柯 Kaley Cuoco 配音）终于在毒藤女（蕾克·贝尔 Lake Bell 饰）的帮助之下认清了小丑的薄情与无情。两人越狱之后，哈莉奎茵和小丑分手了，之后她搬进了毒藤女的家中，两人开始了同居生活。
　　虽然已经分手，但小丑带给哈莉奎茵的影响却是十分巨大的，哈莉奎茵无时不刻想要在小丑面前证明自己的实力，最好的方式就是加入小丑所在的组织毁灭军团。为了加入毁灭军团，哈莉奎茵需要队友，很快，鲨鱼王、泥脸和神经博士三人就出现在了哈莉奎茵的视野中。

　　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").