A closeknit band of teenagers in fictional Angel Grove, Calif., transforms into a uniformed team of superheroes ready to take on any villains. Their primary focus is Rita Repulsa, a space villainess captured long ago by the wise sage Zordon and inadvertently freed by astronauts. Zordon recruits the teens to help him recapture Rita, and later to battle against Lord Zedd, Rito Revolto, and Master Vile.
Rita's Frankenstein monster crashes a Halloween costume party.
Jason and Tommy must work together to put a stop to Rita's Super Putties.
Rita turns flowers that cover parade floats into evil creatures that attack Angel Grove.
Billy and Trini try to save a statue from being demolished; Rita hides her latest monster inside a replica of the statue and releases butterflies that make people fall asleep.
Squatt and Baboo create a tortoise called Shellshock, a monster that can freeze people in motion, to impress Rita.
The Rangers destroy the Sword of Darkness; Alpha restores the Command Center and brings Zordon back; Jason tries to convince Tommy to join forces with Zordon.
The Green Ranger works on destroying Zordon's communicator; Rita blocks the sun with a lunar eclipse.
Zordon leaves the Power Rangers on their own as Goldar begins his attack on the city.
Tommy manages to trap Jason in the Dark Dimension.
Using a power coin, Rita bewitches a new student at Angel Grove High and turns him into the Green Ranger, setting him against the Power Rangers.
Billy gets inspiration from Trini's uncle Howard, a scientist and martial arts expert.
Billy draws on the powers of his friends to rescue the girl of his dreams.
Putties attack the Rangers at the park; a potion turns Kimberly and Billy evil.
The Rangers attend the Circus Fair, which they don't know is a trap set up by Rita.
The Power Rangers must fight a monster named Knasty Knight, who manages to melt their weapons.
Rita steals one of Trini's favorite trolls from her doll collection; the troll comes to life with an incredible urge to steal.
Rita commissions a monster that can capture people's minds, Eye Guy, who captures Billy's 12-year-old protégé.
Kim and Trini become big sisters to a preteen; Rita discovers the secret to Zordon's power.
Rita commissions a monster to play mind-control music.
Rita casts a spell on Jason when he tries to beat an old bench-pressing record held by Bulk the punk; Jason must fight two of Rita's monsters without the other Rangers helping him.
Kimberly and Trini gather enough signatures to close down a polluting dumpsite that is controlled by Rita; the Rangers join together to defeat Rita's latest monster.
Rita sends a portal shaped like a miniature shuttle after the Rangers.
Bulk and his sidekick, Skull, initiate a food fight at a festival intended to raise money for improvements to a playground.
Endowed with superpowers by an interdimensional wizard, five teens battle an evil empress.