The Killer Elite (1975)

Synopsis
This second-string Sam Peckinpah action film features James Caan as ex-CIA agent Mike Locken, who has retired due to injuries received at the hands of his ex-partner George Hansen (Robert Duvall). But Mike is lured out of retirement to protect Yuen Chung (Mako), an Asian political leader. There's a contract out on Yuen Chung's life -- and the killer assigned to rub out Yuen Chung is none other than Mike's former partner, George Hansen. The confrontation between the two leads to a showdown on a decaying naval vessel between Mike's forces and a group of ninja warriors. ~ Paul Brenner, All Movie Guide