One Down, Two to Go (1982)

Starring:

• Fred Williamson
• Jim Brown
• Jim Kelly
• Richard Roundtree 
• Paula Sills

Storyline
The stage is set of old-school vengeance as fight promoter Ralph (Richard Roundtree) and kung fu master Chuck (Jim Kelly) discover that their big-money karate tournament has been rigged by the Mob. But when Chuck and Ralph are shot, they call in their partners Cal (Fred Williamson) and J (Jim Brown) to help settle the score. Can the four hardest players in the game tear apart a small town to find the crime boss who set up the double cross?