Sam, Rockey, and Princess are homeless pups following their dreams for adventure. They didn't realize playing pirates would send them adrift on the Atlantic Ocean.

Hunger leads them to Bones Restaurant where they meet other homeless dogs. Maggie and Cosmo, who think only of themselves and travel by the Hobo Express. Timber lives alone in the woods. Sadie Lady lives on the streets of Milwaukee. Bell has dreams of her own; she wants to live with Santa. Officer Tom brings Tammie into their lives along with the stowaway, Diane.

Bell's dreams inspire all of the pups, and they decide to travel to Santa Land. Their new adventure begins by journeying across the waters of the Atlantic Ocean as they search for the North Pole. They see sites they've never seen before and have new experiences. Will their trip to Santa Land quench their thirst for adventure?