On a trek through the Oregon rainforest, Lassie and her master discover a careless camper who has leaked oil into a stream, endangering hundreds of ducks on their seasonal flight. The Ranger and Lassie teach the camper a conservation lesson he won't soon forget.
| Creator | Robert Maxwell |
|---|---|
| Actor | Hugh Reilly, Josh Albee, Larry Pennell |
| Country | United States of America |
| Production |