Plot

Carl, Sheen, and Jimmy take jobs at a local burger joint. Jimmy transforms it to a fully automated restaurant that aims to please the customers and destroy the competition.

Jimmy, Carl, and Sheen get jobs at McSpanky's Burger joint in order to get enough money for all the gold they have burned off from their hover hats. Carl and Sheen enjoy their jobs, but Jimmy becomes miserable and he ends up getting humiliated by Cindy and Libby. Jimmy decides to prove to Skeet that he is a more competent employee by upgrading the restaurant at night. McSpanky's soon becomes really popular to the citizens, except for Hugh, who still wants to go to Taco Shack. McSpanky's proceeds to get rid of all the fast food joints including Taco Shack after hearing Hugh singing about his favorite restaurant. Jimmy and his friends must prevent McSpanky's rampage before he gets rid of the any other place that sells food.—dawsonpersi

To raise money for his inventions, Jimmy decides that he, Sheen, and Carl should get jobs. Skeet, employee of the month at McSpanky's, hires Sheen and Carl, but doesn't think Jimmy's the McSpanky type, though he agrees to try Jimmy out. Jimmy, however, is not pleased with the humiliating work he has to do, so he takes it upon himself to show everyone what he's capable of - by making McSpanky's fully automated and hygienic. Everything is smooth sailing until Hugh starts talking about Taco Shack, which causes the approval rating to drop. Then the whole restaurant starts shaking. As it shakes, the restaurant starts taking away everyone's food, which causes the rating to drop to "VERY UNSATISFIED". Principal Willoughby announces that it is "Burger-geddon" and Sam tells everybody to run out of the restaurant.

The restaurant then grows in size and then starts flying like a UFO. Jimmy, Sheen and Carl follow it in Jimmy's hovercraft to determine what it's doing, and they observe it destroying Taco Shack along with two other local fast-food outlets so that it will be the only restaurant in Retroville which makes everyone around those restaurants run and scream and Hugh cry. However, the restaurant then starts heading towards the supermarket, and Jimmy realizes that it's not satisfying with just destroying restaurants. It's gonna destroy every single place in town that sells food products.

Jimmy rewires Goddard's tongue and tricks it into placing an order for 4 McSpanky's deluxe burgers cooked at 20,000 degrees Fahrenheit (which Sheen calls "A King Arthur with a hip replacement on a bed of coal"). The restaurant then flies to the only place where the temperature can get that high: the Sun. But instead of burning, the restaurant is salvaged and commandeered by Zix, Travoltron, and Tee, who find Skeet's employee of the month picture; they assume he was the captain of the ship and set off to find him.