Golgo 13: The Professional, known as simply in Japan, is a 1983 Japanese adult animated action film based on the manga series Golgo 13 by Takao Saito. The film was directed by Osamu Dezaki, produced by Yutaka Fujioka and Mata Yamamoto and was written from a screenplay by Shūkei Nagasaka. It is the first animated film based on the manga, and the third overall Golgo 13 film after two previous live-action films (the second film starring Sonny Chiba as Golgo 13).

Plot

Professional contract killer Golgo 13 is hired to assassinate Robert Dawson, the son of oil baron Leonard Dawson and the heir of Dawson Enterprises. He succeeds in doing so. Some time later, Golgo is hired to kill Dr. Z, a shadowy crime boss who rules over the Sicilian mafia. After infiltrating Dr. Z's organization and sleeping with his daughter, Cindy, Golgo survives an ambush from the Dr. Z's henchmen. He calls Cindy to tell her he figured out that she is actually Dr. Z, then later kills her while she is at a beach. Golgo then escapes ambushes by US Special Forces Lieutenant Bob Bragan and three agents from the CIA. Golgo's local contact, a clockmaker, is murdered by a genetically enhanced supersoldier named Snake. Aided by the Pentagon, the FBI, and the CIA, Leonard Dawson has become determined to kill Golgo and avenge his son's death.