When Zim formulates a plan to get revenge on his skoolmates and especially Dib, he gets them all participating on a fieldtrip. Dib, however, realizes that the driver of the bus isn’t real, but due to his constant theories, the other students disregard his warnings. Zim decides to gloat about his magnificent plan and he informs Dib of every detail in confidence that Dib can do nothing to stop him, though Dib refuses to give up and he does everything he can to save his skoolmates and himself; despite the fact that he doesn’t know why Zim’s plans involve a room with a moose.

When Dib once again notices that Zim isn’t eating his food, he throws a piece of bologna at him in order to taunt him, in which the bologna fuses with Zim’s skin, causing him immense pain. Zim vows to get his revenge and during the next day of school, Dib sits on a tack, which causes Zim to begin laughing hysterically. Dib believes Zim is just being pathetic, but when Dib begins to transform into a living piece of bologna, he realizes that Zim’s plan was better than he had thought and he must formulate a method of curing himself before it’s too late.

When Professor Membrane invites some of his colleagues over to the house, they insult and mock Dib because of his hobby of paranormal investigation. Matters become even worse for Dib when Mysterious Mysteries begins to show a segment on Chickenfoot, a being that is obviously a guy in a suit. Dib decides to go on a crusade to prove Chickenfoot is a fraud in order to establish the fact that paranormal investigation also disproves the frauds along with proving the real mysteries, though will Dib be able to find the elusive Chickenfoot and even if he does, how will he manage to get the suit off of him?

When Zim’s constant requests to the Tallest get on their nerves, they attempt to remind him that he is an Invader, not a battle soldier, and that he doesn’t have the training to use the equipment he requested. In order for Zim to prove himself to them, they send him to Hobo 13, an elite training facility that only the best of soldiers stand a chance of completing. While the Tallest hope that Zim will die on the mission and be gone once and for all, they soon discover that Zim is much more cunning than they gave him credit for.

During Probing Day, the day where the Tallest evaluate the Invaders’ performances, Zim has Dib captured in a space-time-field prison which is keeping him in slow motion, in which Zim wants to perform experiments on him for the Tallest. However, when a malfunction causes the prison to explode, Zim finds a piece of explosion that is expanding very slowly; in which Zim believes he can end if he throws it into the city’s cesspool. However, when he discovers that getting the explosion to the cesspool is much more difficult than he expected, he finds that he may just have to use unconventional means to complete the task.