When famous actress Nikki Valentine is captured by Mesogog to be used as a part of his evil schemes, the Rangers must save her and face off against Mesogog's newest monster named Megaldor. Meanwhile, Hayley uncovers a new Dino Egg, which hatches into the Stego Zord.

When Dillon struggles to activate the invincibility mode of his suit, he challenges Dr. K to come out from behind their protective screen.

Scott is flooded with memories of his brother when he returns to Marcus' crash site in order to retrieve an over thruster core the Rangers need for the new Megazord configuration.