Neste primeiro episódio, Dave Bannister é baleado no funeral com 20 testemunhas presentes e não foi ouvido um tiro, nem mesmo do amigo do Green Hornet, o procurador do distrito, que também estava participando. Um mensageiro de uma Corretora, com US $ 5000 em títulos negociáveis, é a segunda vítima do SILENT GUN. O Besouro Verde e Kato respondem na infame Black Beauty e vão às ruas para rastrear esse culpado vilão.

Depois que Joe Sweek é assassinado em uma oficina próximo, o Besouro Verde planeja uma visita não programada ao chefe de artilharia Alex Colony para propor uma parceria com ele.

Depois que o repórter Pat Allen é morto no Daily Sentinel por um leopardo, Britt Reid encontra um transmissor em uma caixa de cigarro. Mais tarde, D.A. Scanlon informa Britt da descoberta de um diamante perfeito na mesa de Allen. Investigando aos redores, Reid descobre que o gemólogo estava trabalhando na produção de diamantes sintéticos.

Um cientista prevê crimes com um computador que implica o Besouro Verde.

O investigador particular Nat Pyle informa a Brit que ele tem provas, para uma história, que o presumido estrateiro morto Glen Connors, ainda está vivo. Pouco depois, Nat é encontrado morto flutuando no porto em um possível acidente de barco. Besouro Verde encontra um interesse especial, porque ... Glen Connors enquadrou o verdadeiro pai do Besouro Verde.

Uma empresa ilegal fornecedora de bebidas criadas por Dirk força uma fortaleza de bares na cidade a comprar com eles. Enquanto o repórter Mike tenta seguir uma pista até os chantagistas, ele é seqüestrado. Não olhe para cima ou você verá Dirk em seu helicóptero lançando bombas em seus não conformantes, seu método preferido.

Parece que membros ricos e proeminentes da comunidade estão executando crimes e depois esquecendo que eles já aconteceram. Eventualmente, o Procurador Distrital e Besouro Verde acham que Peter Eden, dono do Vale do Éden, está deixando "sugestões" "nos sonhos subconscientes dessas pessoas depois de receberem tratamentos do Vale do Éden.

Part two picks up with a GREEN HORNET visit and proposition for Peter Eden, owner of the Vale of Eden. After Peter uses Vanessa Vane to double-cross the Hornet, the Hornet re-visits Peter and uses his own dream machine on Peter to foil the last crime for the evening.

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.

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.

Big game hunters are using mobsters as quarry but their next target may be their most dangerous game yet, the Green Hornet.

After a rash of wealthy homes are burglarized, Reporter Mike Axford becomes so suspicious he places himself at the next possible home to be targeted, only to find himself being arrested, behind bars, for suspicion of murder.

""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.

Britt Reid orders Mike Axford to team up with the Green Hornet to uncover the ringleader in a insurance scam.

Mike reluctantly agrees, but later tries to expose the ringleader alone, leaving it up to the Green Hornet & Kato to save him before it is too late.

Its election time again and District Attorney Scanlon is running although someone wants to permanently remove him from the ballot.

An arsonist wreaks havoc setting fire to buildings at the stroke of midnight. The Green Hornet and the District Attorney work behind the scenes to aid the Commissioner to put a stop to this HOT situation. Throughout the arsonist's reign, Reporter Mike is kidnapped.

A tank crew who served together in Korea steal a tank to free their former captain from prison before he is executed for murder. It's up to The Green Hornet & Kato to stop them before they can accomplish their goal.

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.

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.

The Green Hornet uses Mike Axford in a plan to get mobsters Phil Trager & Steve Gant to take each other out.

But when Axford shows up when he isn't expected to, the plan may fail and cost him, the Green Hornet, and Kato their lives.

Britt Reid must figure out how to get medical attention for a wound he received as the Green Hornet and stop two cops who are using silent alarm calls for their own profit.

After the Green Hornet prevents the assassination of a Prince Rafil, his blonde American fiancé, Janet Prescott is kidnapped and the prince is ordered to abdicate in order to save her.

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.

As a surprise birthday party begins for Britt, a gift gun given as a present to Britt, seemingly shoots by itself fatally terminating ex-employee Eddie Rech, almost puts Britt in jail.

The arrival of visitors from outer space seemingly coincides with an Air Force convoy transporting top secret electronic equipment and an H-Bomb missile warhead. Having Britt's secretary Casey taken hostage makes the situation very touchy.

Part 2 begins with the Green Hornet using his tracking signal to close in on the visitors from Outer Space and their mystery.