After a construction crew accidentally cracks open a gigantic egg that has imprisoned evil maniac Ivan Ooze (Paul Freeman) for centuries, the Mighty Morphin Power Rangers prepare to face their most formidable foe yet. The vengeful Ooze kills their elderly mentor, Zordon (Nicholas Bell), and with him the source of the Rangers' power. Stunned by Zordon's death, the Rangers struggle to contain Ooze without the help of the Zords, the giant mechanical robots they have grown to depend upon in battle.