After Lord Zedd arrives and takes control of the Zords, Zordon embarks on a plan to upgrade to the Power of Thunder. But first he has to find the Thunderzords and unlock their powers. Can his old student Gosei offer assistance?

Following the arrival of Lord Zedd and his betrayal of Rita Repulsa, Goldar reflects on why he turned on the woman that offered him so much. In the end, she betrayed him first.

Lord Zedd decides to use Billy's science experiment as a monster.