Regan and Carter try to catch a man trying to blackmail a pools winner about the part he played in a robbery.
An assassin who doesn't know he's an assassin? Sounds like a punch line from "The Naked Gun," but it's the story of this episode, where a diplomatic courier with a briefcase chained to his wrist is hypnotized and programmed to rig the case with a bomb. When Danno goes undercover to ferret out the assassination ring, he himself is brainwashed and programmed to kill McGarrett.
A new customer at the music store turns out to be Mindy's old rival, Susan, who promptly sets her sights on Mork, as revenge for Mindy stealing her boyfriend back in high school.
Bars of gold are stolen from the Intergalactic Federation, and G-Force is sent out to get it back. While searching one of the islands where the gold might be hidden, Mark, Princess and Keyop are captured and taken to a secret Spectra base.
Zoltar releases a poisonous pollutant into the ocean which is killing all the fish in the ocean. G-Force has to stop the him before the Earth's entire ecosystem is destroyed.
A famous actress is mysteriously electrocuted at an exclusive spa and the Angels are called in to find the murderer and a missing manuscript she had at the time of her death.
Lifeline must work overtime when a heavy storm downs several British planes on their way back from a bombing raid on Berlin. Natalie comes into contact with Major Nicholas Bradley, a British officer on a special assignment, who is uncooperative and highly critical of Lifeline’s security when he follows her all the way back to the Candide. It seems that Bradley’s concern is well founded, as an undercover Gestapo man is also tailing Natalie.
Nicholas has a crush on his teacher and buys her self-portrait at her garbage sale, but tries to hide it from the kids, who think there is a valuable painting underneath. The Bradfords because believe Nicholas's painting may be worth a fortune and dream about how they would spend their millions of it is. Tommy's chances with a popular girl are hurt when he contracts trench mouth.
The trials of a group of law students under the tutelage of a strict professor.
Starsky and Hutch brush shoulders with high-society, at an exclusive party that photographer friend Marcie has invited them to, but the event grinds to a halt when an artist is shot dead by an unknown assassin. Marcie has caught the shooting on camera, and the Detective duo confiscate the pictures for Police evidence as they begin some black-tie sleuthing on the champagne circuit. But Marcie is determined to use the valuable photos to break into big-time journalism, and quietly holds on to one to sell to the highest bidder – only for her life to now be endangered by the killer, who is determined to get their hands on the incriminating film...
Planet Vega is attacked by Spectra's Space Ray Machine and most of their vital installations are destroyed. G-Force is sent to Vega to track down the Ray Machine and follow it back to the base. They must infiltrate and destroy the base and the Space Ray Machine to keep Spectra from capturing Vega!
Fonzie and his girlfriend's son are getting along together as if they were father and son, but his girlfriend reveals that she and her estranged husband are getting back together.
Elaine invites Alex to her party for art dealers for moral support, but asks him to lie about his occupation.
In 2977, mankind has space colonies, machines do all the work and everyone just wants to have fun. When deadly plant-based aliens that look like women attack the Earth in order to colonize it, only one rogue captain can stop them.
After Horshack refuses to disect a frog in class, his grade is in jeopardy.
Upon their splashdown on Earth, two astronauts are kidnapped by a Manta Ray submarine for discovering the location of Spectra bases on Mars. G-Force is called upon to resuce the astronauts and retrieve the valuable information they obtained. Mark infiltrates Spectra's base, and is later joined by Keyop to return the astronauts to The Phoenix. The Spectra Commander escapes in the head of the Space Terrapin, only to be destroyed by the Fiery Phoenix.