After the penguins foil Hans' raid on a weapons lab, a tube of Inflatium accidentally spills onto Skipper, causing his body to expand like a balloon whenever he gets angry and risk popping if it expands too much. The other penguins try to keep Skipper relaxed as he attempts to remain somewhat active in the unit, but when they are unable to prevent him from getting angry, they persuade him to work inside the HQ at a desk instead of going out on missions. But when the other three set out when Hans makes another attempt on the weapons lab, they are soon captured and Skipper has no choice but to go after them in his inflated state. His condition winds up protecting him as Hans fires weapons at him with no effect, with Skipper also able to use his body to attack Hans as well. When Julien arrives and inadvertently pins down Hans, however, Hans gloats that Skipper was not the one to defeat him, which angers Skipper to the point of finally popping. But rather than having blown apart, a normal-size Skipper emerges from within his burst outer body. Julien then spills Inflatium on himself, and Skipper rides him through the street.