赛车手阿浪（邓超 饰）一直对父亲（彭于晏 饰）反对自己的赛车事业耿耿于怀，在向父亲证明自己的过程中，阿浪却意外卷入了一场奇妙的冒险。他在这段经历中结识了一群兄弟好友，一同闯过许多奇幻的经历，也对自己的身世有了更多的了解。

Beijing, the present day. Popular TV personality Da Peng is invited by gangster businessman Wang Hai to make a film in which he will invest. Wang insists that Da Peng's co-star is TV drama actress Du Xiaoxiao. However, after a nightclub scandal involving Da Peng goes viral, he's blackballed by a powerful internet executive and finds himself unable to attract any male co-star. Wang also wants his investment back. Da Peng decides to make his own movie on the cheap, using a script he has about an alien, A Li, who arrives on Earth and has various adventures as a superhero.

When the future empress Wu Zetian's two courtiers die in a mysterious fire, she gets Di Renjie, a former detective and rebel, released from prison to solve the mystery of the fire.