When a wax figure of The Scarf, an infamous strangler from 15 years ago, is replaced by figures of the Green Hornet & Kato, the figure seemingly comes to life and starts attacking people. Using a manuscript about the Scarf, the Green Hornet & Kato attempt to snare the killer before he claims any more victims.
After another death, Simon Neal, publisher/owner of the Daily Express, by the phony Green Hornet, part 2 begins with Britt Reid bringing on-board Daily Express's previous employee, Dan Scully, to help investigate Simon's termination. After finding out from Sabrina Bradley, Managing Editor of the Daily Express, that a copy Black Beauty was produced for the Press Club's Masquerade Ball, the real Green Hornet sets a trap with her help.
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.
""The Sally Bell"" a cargo ship with $2 million in narcotics en route to the U.S. from Hong Kong, is initially lost with her crew at sea, now mysteriously shows up at a salvage yard. The only survivor, Gus Wander, knows ""The Secret"" of her special cargo with only one big problem -- he's currently unconscious.
Organized crime's ""Protection"" Boss Duke Slate decides it's time to acquire the oriental businesses in town and uses Low Sing's gang to handle his influence. Low Sing, a martial arts professional, instructs his craft to his gang using the actions of a caged Preying Mantis, analogizing its intricate moves to proper Kung-Fu application. After a kidnapping, engineered by Low Sing, a challenge between Low Sing & Kato results in an interesting result.
A charity art auction of fine paintings at Britt Reid's home is interrupted on live television by three masked, gun toting criminals. The police, nearby, manage to wound one of the thieves, but before they can arrest the other two, a laser ray is unleashed on their squad car with devastating results. The Green Hornet and Kato find themselves in quite a confrontation against this roving killing machine.
Seems that wealthy and prominent members of the community have been executing crimes and then forgetting that they ever happened. Eventually the District Attorney and The Green Hornet find that Peter Eden, owner of the Vale of Eden, has been leaving ""suggestions"" in these people's subconscious dreams after receiving treatments from the Vale of Eden.
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.
After reporter Pat Allen is killed at the Daily Sentinel by a leopard, Britt Reid finds a transmitter in a cigarette box. Later, D.A. Scanlon informs Britt of the discovery of a perfect diamond on Allen's desk. Digging around, Reid discovers that the gemologist had been working on producing synthetic diamonds.
In this premier episode, Dave Bannister is shot at funeral with 20 witnesses present and not a shot was heard, not even from the Green Hornet's friend, the District Attorney, who was also attending. A messenger from a Brokerage House, carrying $5000 in negotiable bonds, is the SILENT GUN's second victim. The Green Hornet and Kato respond in the infamous Black Beauty and hit the streets to track down this villainous culprit.