Jason, Zack, and Trini are chosen for the World Peace Conference in Switzerland. This means the Power Rangers are going to need a trio of replacements. But first, in order to transfer the powers to anyone else, our six heroes must travel across the galaxy, to a place called the Deserted Planet.
There, they attempt to locate the fabled Sword Of Light. The Rangers aren't alone on the Deserted Planet, as Lord Zedd & Goldar have followed in their very own, massive evil Zord, called Serpentera. So big, it not only can crush the Red Dragon Thunderzord & Tor the Shuttlezord in one of its clawed feet, but it does just that!
Back on Earth, to prevent Zordon from choosing any replacements, Baboo & Squatt activate the Sleep Machine, which knocks out most of Angel Grove. Rocky, Adam, and Aisha (having recently transferred to Angel Grove High School from Stone Canyon for reasons never disclosed) are spared, and try to destroy the machine, only to end up captured by Putties.
Elsewhere, just when the Power Rangers locate the Sword Of Light, Zedd fires Serpentera's laser-breath, thus obliterating most of the Deserted Planet.