Feed a Cold

Russel infects all of Under with his cold, turning them all into uppity superheros who kick Russel and Gus out of the town. Bob and Vernon, being inorganic were immune. They go to Near Under and Captain Darling tells them a plant native to the Equatorial Glaciers will cure the infected Underites, but Bob tells their plan to the Underites in an attempt to get into their good books. Vernon tries to find the cure for Russel's cold in Up.

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S01E26 - Accordian of Doom