The life of Alexander von Humboldt up to his attempt to climb the Chimborazo in 1802.

Frank, a young taxi driver from Berlin, falls in love with Jessica, a model. But the calls for help from his brother Ritchie bring him back to a tragic reality. For like Frank, he once was a dope fiend. Ritchie, as for him, is still deep in the hell of drugs, torn between getting his doses and trying to find 4,000 marks he owes to his dealers.