When the spaceship colony Buzz Aldrin spots an ice planet, although it's no good for long-term habitation, it is a great place for a winter holiday! Armed with skis, snowboards and sledges, the children are taken for a fun-filled field trip, which quickly turns to disaster when an avalanche strikes. Luke, Yuri and Yasmin think that being trapped in an ice cave is bad enough, but then discover that actually they're inside the mouth of an enormous alien creature! Will the trio of young adventurers ever manage to escape? Or will they become the human equivalent of a frozen TV dinner?