Three the Hard Way 1974

Synopsis:

A record producer, a PR man, and a black belt in karate foil a white supremacist plot to poison the water supply.

Directed by: Gordon Parks Jr.
Written by: Eric Bercovici & Jerrold L. Ludwig
Release date: 1974-06-26
Runtime: 89 minutes
Tagline: Action explodes all over the place when the big three join forces to save their race!
Cast:
Jim Brown
Jim Brown
Jimmy Lait 
Fred Williamson
Fred Williamson
Jagger Daniels 
Jim Kelly
Jim Kelly
Mister Keyes 
Sheila Frazier
Sheila Frazier
Wendy Kane 
Jay Robinson
Jay Robinson
Monroe Feather