In the wake of Dawson City's Great Fire of 1899, sixteen-year-old Jason and his girlfriend Jamie canoe the Yukon River across Alaska in an epic race from Canada's Klondike to the new gold fields at Cape Nome.
Yearning for adventure and tired of farm life in New Hampshire, sixteen-year-old Mary Margaret Malarkey journeys to California in 1848 to find her father who arrived earlier to make his fortune in the goldfields.
In 1848, fifteen-year-old Phoebe Brown disguises herself as a boy and runs away with her friend Robbie Robson to join in the California gold rush and, after many adventures, they eventually find themselves running a restaurant in San Francisco.
Buck, a dog that has been forced into the harsh life of a sled dog, befriends a man seeking his fortune in the Klondike gold fields, and must ultimately decide whether to stay with his master or obey his instinct to join the wolves.