The kids have a big surprise for Katherine. And, Master Vile has a big surprise for the kids. While they enjoy the carnival, he's unleashing his diabolical plot. Our heroes are summoned to the Command Center. And now must face their greatest challenge yet.

Lord Zedd and his gang land on Earth to turn Angel Grove into a frenzy. Meanwhile, our heroes are trapped as their younger selves. But, danger is just ahead when the enemy's minions show up. Then, confusion ensues when the police arrive.

Young Billy and the Alien Rangers work together. Meanwhile, Zedd and Rita develop a plot to defeat the Rangers. Then, Rito decides to take a bus. And, suddenly, the Alien Rangers are falling under the weather.

The kids work on a new device that will help the Alien Rangers. Then, suddenly, Rito and Goldar appear as the Alien Rangers defend their young friends.

Our young heroes receive good news about the Alien Rangers. Meanwhile, at the evil palace, Lord Zedd and Rita Repulsa are ecstatic. Then, they devise a plan to turn one bad boy into a monster.

The Rangers are about to begin their quest, but at the start of their journey, Cestro begins to dehydrate. Rita and Zedd conspire to keep the Alien Rangers dry. And, Billy takes action.

Billy needs some spare parts. .. but, where? The young Black Ranger continues his quest. And, the Alien Rangers grow dry. Meanwhile, Rita and Lord Zedd have big plans for one pesky spider.

Young Tommy's quest begins as does young Katherine's. And, Billy learns a new danger: the Hydro Hog.

Aisha's quest begins. Meanwhile, Lord Zedd seeks the Zeo Crystal for himself. And, he summons the evil Hydro Hog. His assignment: get the Rangers.