A former cop returns to challenge a plot to escalate gang violence in the streets of Los Angeles.

Jeff, a young delinquent, is enrolled by his father in a kenpo school, in the hopes of teaching the boy some self-discipline. Years later, Jeff's mentor, Kim, is being threatened by one of the Korean mafia families. Jeff tries to help his old friend, but is too late to prevent Kim's death at the hands of an unknown hitman. Vowing revenge, Jeff takes on all of the families, using his martial arts skills to find the man who killed his friend.

If your enemy refuses to be humbled... Destroy him. Accompanied by his brother Kurt, American kickboxing champion Eric Sloane, arrives in Thailand to defeat the Eastern warriors at their own sport. His opponent: ruthless fighter and Thai champion, Tong Po. Tong not only defeats Eric, he paralyzes him for life. Crazed with anger, Kurt vows revenge.