Follow the dogs Baxter, Trevor, Newton, Maia and Titch as they are transported back in time to 1925 Alaska, now as puppies, and must help Balto complete his mission: deliver medicine during the diphtheria outbreak.

In this third adventure, the Time Dogs--Baxter, Trevor, Newton, Maia, and Titch--find themselves transported back to the year 1800 to the Swiss Alps. There they meet Barry, a famous Great Saint Bernard rescue dog who saved many lives during his service in the mountain rescue program. Together, the Time Dogs and Barry help rescue a boy trapped in a storm.