Power Rangers Dino Thunder

Season 1, Episode 36
The recent attempted exploitation by Elsa of his human side leads Mesogog to finally ridding himself of Dr Anton Mercer. The stunned body of Mercer is carted off by Tyrannodrones, and Mesogog immediately begins acting a lot more insane... The discovery of Trent's long-kept secret about Mesogog leads the main three DinoThunder teens to realize just how important being a Ranger has been to them, and how much they've grown because of it. Trent reminds them of his own struggles, and explains his reasoning for keeping his word to his father. All but Conner is willing to give him a second chance, and even he is persuaded when, while facing Mesogog's latest monster, Trent saves Conner's life. The team's bond is mended, with Trent fully prepared to face Mesogog to free his father.

A group of teenagers trained in the arts of the stealthy ninja warrior unite to protect the world from an exiled evil ninja master determined to conquer the world. SHORT

Dr. Tommy Oliver returns to Ranger duty when his students discover the Dino Gems that morph them into the Dino Power Rangers, enabling them to stop the villainous Mesogog, who's determined to return Earth to its Jurassic past.