S2·E4 No No Nanook

Hector recruits the help of every arctic misfit in a plan to freeze the earth by fluctuating the magnetism of earth and make everywhere on earth a freezing pole. He succeeds despite Cod Commando's efforts, but all gravity on the earth has gone! Everything floats up to space and Hector is abducted by aliens. Luckily for Hector, the aliens all have exposed brains and a stomach you can see, and Hector is accepted into their group.