A Lassie big. After years of prospecting, Jonathan finally strikes gold. He returns to town contrariwise to discover that his mate has since died and left-hand Tommy fatherless. He decides to leave Shep (played by Lassie) with Tommy to comfort him up. Meanwhile, Jonathan's green partner, Lin, isn't interested in sharing the gold, and lures Jonathan to his death. Lassie this instant deduces what's happened, so Lin poisons Lassie. Lassie barely pulls through and pursues Lin to a climactic confrontation where, deserved to an turned-screen casualty with some liquid nitrogen, Lin's gun jams.