Truck company Mittermann is nearly bankrupt. Boss Sylvia Mittermann takes on a risky delivery job with a harsh time limit and a penalty clause to get them out of the reds, but at the same time, all her drivers disappear. Returning driver Franz Meersdonk tries to get the delivery rolling but lacks someone to drive the second truck. His only option seems to be Guenther Willers, an ex-trucker now trying to become a race car driver.

Meersdonk and Willers are still on their way to Tehran. Meanwhile in Germany, professional carjackers steal an identical-looking truck from truck company Reimers. After hearing from the police that the stolen truck is likely already halfway to Belgrade and that there's little hope, they put out a bounty and chase after their stolen truck. Meersonk, meanwhile, keeps getting mistaken for the carjacker.

Arriving in Greece, Meersdonk and Willers need to get their freight through customs. Willers spots Sengle, a former employer who had him take the fall for a lost load. When he gives Sengle a piece of his mind, and fist, Sengle concocts a plan to get Willers arrested, threatening to ruin the whole delivery trip.