当年那场惨烈的芝加哥大战,汽车人虽然成功击退了霸天虎的入侵,却也让地球人对他们失去了应有的信任与尊重。由美国中情局组建的“墓风”部队对所有的变形金刚进行无差别的猎杀,一时间汽车人和霸天虎全都在地球不见了踪影。某天,居住在得州的落魄机械发明家 That year when the fierce Chicago War, although the car successfully repelled Decepticons invasion, but also let the Earth people lost their due trust and respect. The “Tomb” unit, set up by the CIA, indiscriminately hunts all Transformers and all the time the car and the Decepticon disappear from the world. One day, an abrupt mechanical inventor living in Texas