Lassie - Episode

Ranger Scott, a local college student named Jeff Treat, and Lassie take a surveying trip to a former bombsite that is in the works to become a national grasslands area. Jeff offers to help Ranger Scott survey, but when Jeff is accidentally hurt and partly buried in a sandslide, he finds that the slide has uncovered a live bomb next to him. He relies upon both Ranger Scott and Lassie to help disarm the bomb and dig him out to get to safety.