萧炎为唤醒老师药老,来到帝都参加炼药师大会,却因过人实力而被意图不轨的敌人暗算。危急关头,萧炎力挽狂澜成功夺冠,维护了加玛帝国荣誉。解开心结的萧炎,迎接即将到来的三年之约……
当世界仍在从上一季的全球灾难中恢复之际,已发生变化的马克因内疚而痛苦不堪。他在全力保护家园和挚爱之人时,与一股强大的新威胁正面交锋,这股威胁足以永远改变人类的命运。
Some autobots are captured. The remaining Autobots team up with some rebels to free their friends, the rebels know all the weaknesses of their enemies machines. They merge with the Autobots to become Headmasters to free their friends.