Stella, the mistress of a Las Vegas casino owner, and her boyfriend steal a disc containing financial irregularities in the Casino. Murray Crown, the owner of the casino, hires three hit men to find Stella and her boyfriend and retrieve the disc.
A local gang is destroying businesses and starting turf wars. They threaten a boy in Walker's karate class and force him to join the gang. The Rangers must save the boy and stop the turf wars.