As teenagers, kung fu disciples Danny (Alain Uy), Hing (Ron Yuan) and Jim (Mykel Shannon Jenkins) were inseparable. Fast forward 25 years, and each has grown into a washed-up middle-aged man seemingly one kick away from pulling a hamstring-and not at all preoccupied with thoughts of martial arts or childhood best friends. But when their old master is murdered, the trio reunites, soon learning that avenging their sifu will require conquering old grudges (and a dangerous hitman still armed with ample knee cartilage) if they are to honorably defend his legacy.