Annalisa, a former girlfriend, reenters Jake Webster's life by asking him to prove the innocence of her husband, jailed by the Vienna police for the murder of his associate in valuable oil leases. Jake's curiosity is aroused when Karafatma, a wealthy Turk, warns him not to investigate.

When professional soldier Frank Cort arrives in Vienna with a beautiful blonde, Jake suspects that he has unfinished business with Vasamubo, deposed premier of Upper Namba and with General Gundarson. The General with his United Nations Forces is the only man to defeat Cort, who commanded an Army of mercenaries for Vasamubo.