An American pilot assists the Portuguese colonial police who are battling a gang of criminals involved in drug smuggling from Lisbon to Mozambique to Zanzibar.

Set in German-occupied Norway, resistance fighter Knut Straud enlists the reluctant physicist Rolf Pedersen in an effort to destroy the German heavy water production plant in rural Telemark.

The first victim is the butler of South African millionaire Wexler, who hires hard-hitting private eye Steve Martin for protection. Once at Wexler’s palatial Cape Town estate, Martin meets the…