Power Rangers: Season 12, Episode 37

12 - 37: Thunder Struck (1)

Mesegog prepares the final stages of his scheme to restore the planet to the age of the dinosaurs and unleashes a cannon that will transform all human life into the species. Using the energies of Elsa, Mesegog is able to prepare the cannon for use, reducing Elsa to an amnesiac wanderer. Devon discovers the Rangers secret identities, and Trent uses himself as bait to distract Mesegog and allow the Rangers to launch an assault on his island