In the Antarctic Ocean, the icebreaker U.S.S. Icepick is busy clearing the sea lanes. As is usual in the tradition of the sea, she carries a mascot, a large dog who lives in the lap of luxury, and whose every need, covering lodging, food and care, is of the best. The dog mascot's undisturbed existence is somewhat upset by the arrival of Chilly Willy, who goes aboard the ship when it gets stalled in the ice.