A snow-based Christmassy Poseidon Adventure-like adventure. With some sheep. And some swearing. And without a big ship. It's Christmas Eve and Farmer Honey is worried. His flock of sixteen sheep are over at Farmer Brown's Farm. With the help of his brother Trefor and Welsh hero Derek the Weathersheep, he heads out to get them back in time for Christmas. But disaster awaits. Can they all make it back to the farm in time for 'The Snowman'?