When Papa, Mama and Baby Bear return from a walk on Christmas Eve, they're surprised to find their pudding eaten and their chairs sat in and broken. And who's that asleep in Baby Bear's bed?

Stranded on an iceberg on his way to America, Simon remembers his mother's parting words and lights the first candle on his menorah while praying for a miracle, which soon arrives in the form of a friendly polar bear.

Bear and Mouse have finally overcome their differences and are living together in perfect harmony...until it's time to decorate the Christmas tree! Bear wants dazzling lights, while Mouse prefers gigantic ornaments. Did Mouse just put a manatee on the top of the tree? After Bear attempts an upside-down tree, it looks as if Christmas might be ruined for the pair. But maybe, just maybe, Bear and Mouse can reach a compromise in the spirit of the season--...