Private Investigator Nat Pyle informs Brit that he has proof, for a story, that presumed dead racketeer Glen Connors, is still alive. Shortly later, Nat is found floating dead in the harbor from a possible boating accident. The Green Hornet thinks otherwise and finds a special interest, because..... Glen Connors framed the Green Hornet's real father.

As a carbon copy of the Green Hornet's Black Beauty attacks a Daily Sentinel delivery truck and terminates it's driver right in front of Britt Reid -- and Reporter Mike has an explosive visit from a Green Hornet impostor, leads the real Hornet on a cat and mouse chase of his shadow car disrupting Sentinel deliveries.