Boris talks Mr. Big out of blowing himself up with Mt. Flatten by saying if he goes, Mr. Big goes as well! So Rocky and Bullwinkle are flying Mt. Flatten to Washington D.C., where the entire supply of upsidasium is guarded by Fort KnickKnack, run by General Broadbeam. While sleeping in their hotel room, Boris steals Rocky's helmet to look like him to steal the upsidasium. To keep the Upsidasium from falling up, Boris wears magnets on his feet where the floor is metal. Then Boris and Natasha send the Upsidasium out back to a fleet of trucks. Meanwhile, Rocky (in his night cap), Bullwinkle, and General Broadbeam go looking for the person who stole his helmet.
Fractured Fairy Tales: Puss in Boots
Mr. Know it All: How to do Stunts in the Movies
Peabody's Improbable History: The First Golf Match
Bullwinkle's Corner: Little Bo Peep