While out wandering in the open wilderness Lassie finds and saves a wayward cougar cub be attacked by a threatening wolf. During the fight both fall over a cliff. The wolf is killed, and Lassie is injured. The cougar cub's mother, however, repays Lassie's goodness by leading her to the cougar den and seeing that she is undisturbed until Ranger Corey could find her to take her home.
NOTE: Lassie and the Lassie Trademark are owned by Dreamworks Animation LLC.