Secret service ace Ben risks his life every day. But the job pays badly. Ben can't even pay the lawyer who has to fight for custody of his daughter. Then the agent receives a lucrative offer: for one million marks, he is to crack the security system of armaments magnate Otto Hardenberg...

Albi, Franz and Tayfun want little more in life than to ride their bikes, but things toughen up when they get unemployed.

The alien Harald has booked a package holiday on Earth and is trying to find shelter at science fiction editor Rita Reichmans flat. Her admirer Frido Lipinski so not amused because Rita seems to succumb to Haralds charm. But Harald also has quite a few problems in learning the rules of conduct of the earthlings and that he cannot lie, complicates the situation.