Scorpio

Burt Lancaster is an experienced but retiring CIA agent and assassin who is training free-lance hit-man Jean Laurier (Alain Delon) to replace him. The CIA tells Scorpio to kill Cross for suspected treason and collaboration with the Russians. Scorpio is threatened with jail on a false narcotics charge if he doesn't cooperate. Despite blown covers, and many failed CIA attempts to ambush him, Cross manages to stay one step ahead.