1994年，美国纽约。退役军人诺亚·迪亚兹（安东尼·拉莫斯 Anthony Ramos 饰）为了给弟弟治病而四处求职，却不断碰壁，情急之下他铤而走险，打算偷车销赃赚钱。谁曾想第一单就偷了变成汽车形态的博派战士幻影（皮特·戴维森 Pete Davidson 配音），随即卷入宇宙层级的大战争中。原来宇宙中游弋着被称为灭世邪神的恐怖之王宇宙大帝（科尔曼·多明戈 Colman Domingo 配音），它靠不断吞噬其他能源富足的星球补充能量，为此急需要能够折叠空间的“超曲速钥匙”来满足贪欲。此前数千年，被宇宙大帝灭亡家园的擎天圣（朗·普尔曼 Ron Perlman 配音）带着钥匙逃到地球，而他们的踪迹终于被宇宙大帝及其爪牙天灾（彼特·丁拉基 Peter Dinklage 配音）发现。　　于是，地球人、汽车人、巨无霸联合起来，与来犯的强敌展开对抗……

　　Hugo Llor, a 12-year-old boy who spends most of his time on the streets. His day is also spent in the shipyards and his dream is to become a shipbuilding craftsman, although his fate is uncertain. Hugo's life is not easy, he is a very lonely boy and his mother is forced to move away from him, but he has the support and protection of a respected old man: Arnau Estanyol.