While in Canada Timmy and Lassie encounter a downed hot air ballonist. By accident they end up in the balloon which takes them into the wilderness. The young boy and his dog must find a way to survive even fending off a wild pig.

Genres

Cast

June Lockhart

Ruth Martin

Jon Provost

Timmy Martin

Bob Howard

Sergeant Sprague

Richard Kiel

Chinook Pete

Will J. White

Constable MacDonald

Patrick Waltz

Pilot

Dick Simmons

Lassie

Lassie the Dog