Lassie plot
Lassie is a series starring a collie, or a Scottish sheepdog. Over the years Lassie has had several owners. In the beginning, Lassie is paired with his owner Jeff Miller. When Jeff's grandfather dies, Jeff and his mother move out. Lassie is then taken in by a new owner, seven-year-old Timmy Martin. Timmy and Lassie have all kinds of adventures. Much later, the collie leaves her familiar environment and becomes the companion of a number of rangers in the American forests in the northwest of the US.