介绍：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).

介绍：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).

介绍：汽车人和霸天虎的战斗绵亘了几个世纪都未曾结束，而他们的后代——巨无霸和原始兽，更将新一轮的战斗推向了史前时代在寻找新能源的途中，霸王龙（David Kaye 配音）指挥原始兽通过时空跳跃来到史前地球，而巨无霸也在擎天圣（Garry Chalk 配音）的带领下尾随而至。双方的拉锯战仍在继续，不久连早已盘踞在该星球的外星人沃克人也卷入其中。而穿越时空者身上承载的未来的信息，让外星人大为惊恐，由此使得战斗更加激烈。在此之后，霸王龙发现了汽车人留在地球的战舰方舟号，为了改变霸天虎战败的历史，他们试图摧毁处在沉睡中的擎天柱。　　攸关全宇宙命运的战斗，在远古时代提前拉开了序幕……

介绍：为了阻止原始兽得到行星盖亚上的神秘能源——阿古莫亚巨无霸在白狮擎天柱的率领下，与威震天率领的机械军团展开了战斗。

介绍：为了阻止原始兽得到行星盖亚上的神秘能源——阿古莫亚巨无霸在白狮擎天柱的率领下，与威震天率领的机械军团展开了战斗。