Abigail is a nine-year-old girl with a huge imagination who moves to a small town where she's the new kid at school, struggling to make friends. All that changes when she meets a Yeti named Claude who has escaped a top-secret government facility. Abigail and Claude become the best of friends, but to make sure he can truly be free from the "Shadow Men" chasing him, they must go on an adventure to find Claude's real home!
Abigail knows helping Claude find his way home won't be easy (goodbyes never are), but just as the two best friends set off on their journey, the Shadow Men put their top and most dangerous agent on the job of tracking the missing yeti down.