From his evil palace, Lord Zedd observes the attack on the planet Edenoi by the evil Count Dregon. Meanwhile, the Rangers plan to teleport to the planet. When they arrive, they find themselves embroiled in the attack and in the presence of strange alien life forms and one very mysterious and powerful being. Kimberly continues to battle Repellitor while the other Rangers continue their fight with the Plague Patrol and the Masked Rider battles the Cogwarts. This setback outrages Count Dregon. Meanwhile, Zedd makes his monster grow and it's up to Kimberly to devise a plan.
First team-up that the rangers team-uped with a non-ranger, followed by In Space's: Shell Shocked, where the rangers team-up with the Ninja Turtles.
The Repellator monster is the Silverhorns suit from "The Power Transfer" repainted green and with a long red tongue attached.
This three-parter setup the short-lived Masked Rider series, though that series would ultimately be considered non-canonical to Power Rangers and vice-versa. Though the one shot Masked Ridercomic published by Marvel Comics, would feature one more crossover between the two series.