On the planet of the intelligent rhino beasts, they are attacked by a swarm of aggressive Lurps. These are not the same Lurps from "Rearview Mirror Mirror 2", but a different set of lurps. The lurps are deceptively strong, and can sap the strength of their enemies using flowers. Their leader, Papa Lurp (Voiced by Richard Steven Horvitz) comments how well the invasion is proceeding. One of the lurps notice that one of the Rhino Beasts has escaped through a portal. Papa Lurp comments that it is not important to pursue, and that the invasion will be complete.
On Earth, Coop has finished making another modification to Megas. Coop reverse engineers the data from the Food replicator he received for his birthday and copies its data into Megas. Megas can now summon any food item for Coop whenever he wants it. He first gets himself a Mega-Slush, which is successfully produces. Kiva asks how this will help in combat. Coop responds that they won't have to worry about going hungry when they are out in space. Jamie says that they also won't have to worry about Coop complaining that he is hungry either. Coop then orders a Philly Cheesesteak.
When the Cheesesteak is created, a loud crash is heard. Jamie tells Coop that there must be some bugs with the food replicator. Kiva says that whatever crash they heard came from the other side of a junk pile they are on. Coop, Jamie, and Kiva go and see the Rhino Beast from before. Jamie wonders if Darklos is there as well.
The rhino beast asks Coop for his help in defeating the Lurps. When Coop & Jamie find out what they are fighting against, they break out into laughter. Kiva comments to not judge an enemy by their size. The rhino beast asks if Coop had fought against the Lurps before. He says that he has. It shows a flashback of Coop controlling Gerkek fighting the lurps in his game.
Coop says that he will help the rhino beasts fight against the Lurps. They go to the planet of the Rhino beasts. Once their, Megas gets into a fight with Hefty Lurp (Voiced by Frank Welker, reprising his Hefty Smurf voice.) Hefty Lurp is incredibly strong and is able to smash Megas around like nothing. At one point, Hefty Lurp saps some strength from Megas, making him stronger. Megas responds by flying into space, and coming down with a powerful body dive right onto Hefty Lurp. This only knocks him out.
Later, Megas gets into a fight with 3 more Lurps. Grouchy Lurp (Voiced by Michael Bell), Jokey Lurp (Voiced by Cree Summer), and Brainy Lurp (Voiced by Barry Gordon). Brainy Lurp is easily defeated and knocked out of the village by Megas. Both Grouchy Lurp & Jokey Lurp give Megas trouble. At one point Jokey Lurp gives Coop a present to open. Both Coop and Jamie are aware of this and pretend to not be able to open the present. Kiva is confused as to what is going on. Jokey Lurp takes the gift and opens it. It explodes, sending him flying. Coop reveals that they knew it was going to be a bomb as both Coop & Jamie watched the show as kids.
Eventually, Papa Lurp gets involved and fights Megas directly. He confuses Coop with his speech patterns. The other Lurps from before return and gang up on Megas. Megas gets pummeled by tiny Lurps. Papa Lurp breaks the car window and grabs Coop by his shirt. Coop then remembers that the Lurps have a weakness to chocolate. Coop then has Megas produce a ton of chocolate, using the food replicator. The Lurps eat the chocolate and fall asleep. Coop then digitizes the Lurps away. The dmv beasts thank Coop for saving them.
The end credits reveal that Coop sent the lurps to the same game that Gerkek is in. When Gerkek goes to attack, they jump Gerkek. Gerkek gets scared.
