Power Rangers Dino Thunder Day of the Dino (2004)

Because the world is never out of danger three Reefside High students must rise up to meet their destiny headon While on a fossilfinding field trip Conner Kira and Ethan fall into a sinkhole and discover powerful Dino Gems that give them each awesome super abilities But alarming evil is afoot as this new crew is confronted by terrifying Tyranodrones Kiras sudden disappearance and Mesogog a reptilian rogue and his robotic wrongdoers Once Mesogog has unleashed his diabolical Zords the teens teacher and mentor Dr Tommy Oliver has no choice but to reignite his past as the Black Power Ranger and morph them into fullfledged Rangers ready to tame the mutant terrors