The veteran mercenary Colonel Allen Faulkner travels to London invited by the British millionaire Sir Edward Matherson to rescue the African President Julius Limbani that had been abducted in a coup d'?(C)tat by the dictator Colonel Mboya. Sir Edward has interest in the copper mines and intends to negotiate with Limbani. Col. Faulkner hires his friends Captain Rafer Janders and Lieutenant Shawn Fynn and the trio select their old friends to form the rescue team. They plan the whole operation and succeed in their mission; however, Sir Edward deals with the dictator and double-crosses the group of mercenaries, leaving them in Rhodesia. The mercenaries have to fight against Colonel Mboya's troops to survive and Col. Faulkner promises to revenge his deceased friends.