The Ranger teens are excited to hear that Tommy is coming home by the end of the week. Little do they realize, that Lord Zedd has other plans in mind for the former Green Ranger. Tommy vanishes without warning, just as Zedd creates Nimrod, the Scarlet Sentinel. The monster, along with its assistants, AC & DC, makes quick work of the Power Rangers. Defeated by the triple threat, things get stranger when the gang discovers the Command Center is powered down, and both Alpha & Zordon absent! Meanwhile, Bulk & Skull recover a strange golden object, after it crashlands in the park. It turns out to be Rita's mini Space Dumpster! They think it holds the key to unlocking the Power Rangers' identities, and set out to break it open, which is easier said than done.