Suspecting Lewis' valet, Bobby seeks him out at the Fan Yu temple, where the underground Tower of Death is rumored to be. After defeating the valet, Bobby spies the secret entrance into the tower. Battling his way through the tower he eventually confronts the operator, Chin Ku. Chin is the head of a global drug trafficking organization and staged his own death to throw off Interpol investigators. He tried to frame Lewis for his death and arranged for the coffin to be stolen to prevent it from being searched. Realizing the only way to defeat Chin's sword skills is with Billy's Jeet Kune Do, Bobby cold-heartedly uses Chin's sword, impales Chin's bodyguard monk (Lee Hoi-San) and Chin together, finally killing Chin and stopping his drug operation.