When a pack of senior dogs find themselves transported back in time - and turned into puppies! - they must make their way back home, helping real-life historical dogs along the way.In this first adventure, meet Baxter, Trevor, Newton, Titch, and Maia - the time dogs! - as they find themselves transported through time and space to 1925 Alaska. There, deep in the wilderness, the puppies must help Balto in his famous sled race to deliver medicine during a diphtheria outbreak.