Un sicari despietat utilitza un taxista a punta de pistola en el seu propòsit d'assassinar cinc persones que han de testificar contra un càrtel de narcotraficants. El film transcorre durant una sola nit a la ciutat de Los Angeles.

En Wheely s’haurà d’enfrontar en una batalla a un camió de divuit rodes monstruós, que és el cervell, d'una banda, de lladres de cotxes de luxe. I tot per salvar la ràpida noia dels seus somnis!

Amidst a backdrop of growing violence and intimidation, independent cab drivers struggling against a consolidated juggernaut rally around hot-tempered Matt Nolan. Nolan is determined to keep competition alive on the streets, even if it means losing the woman he loves.

Balkan Prince Henry has two wishes, to meet Lauren Bacall and see the "real" America. He befriends cabbie Buzz Williams and, without knowing the microphone is live, the two stage a debate on democracy versus monarchy broadcast back to the Prince's homeland. A plebiscite there puts Henry out of a job. Flying to Milwaukee to become a beer salesman, he meets Bacall on the seat next to his, but a tap on his shoulder means he must give up his seat (and dream) to Bogie.