After the death of their father, Matt and Jenny and their mother leave England for Nova Scotia; the siblings' mother dies on the sea voyage, and Adam Cardston offers to help the children find their uncle.

Adam, Matt and Jenny race against time to save the life of an injured lumberjack. Kit, a young man of the wilderness, helps them survive a forest fire and rescues the lumberjack.

Matt and Jenny hitch a ride with a circus family, who are believed to be thieves and are being pursued by a man and haunted by series of mysterious accidents.

Matt, Jenny and Kit help a Native American chief's adopted son search for his birth parents.

With Adam's help, Matt and Jenny hope to find their lost relatives at a mysterious religious community.

A wilderness survival test becomes reality when Jenny gets lost and Matt is trapped in an abandoned mine.