Mighty Morphin Power Rangers Season 1 Episode 45 Crystal of Nightmares Episode Title:Crystal of Nightmares.Episode Description:In preparation for a big upcoming exam in their class, the Rangers go up to the mountain to study together at a cabin belonging to Billy's uncle. Rita devises a plan to activate the Crystal of Nightmares to break the Rangers' self-confidence. While they sleep, Goldar is sent down to Earth to use the crystal. With our heroes stripped of their confidence, are the Power Rangers finished as well? Bulk and Skull attempt to cheat on their test from the Rangers, but winds up with Fs and extended periods of detention in Mr. Caplan's office.