Lassie is out feeding her forest friends,when she comes upon a black lamb. The little creature was caught in a snare and being stalked by a coyote. Lassie chases away the coyote and chews the snare rope free. She is about to leave when the pathetically bleating lamb makes her realize it has no home. First she finds a flock of white sheep and the lamb runs up and eagerly nurses on a ewe. But the ewe doesn't recognize the black lamb as hers and savagely drives it away. Next they find a cow, and the lamb tries to nurse on her. But she kicks it away. By now the little fellow is so weak from hunger that Lassie wants to leave it while she reconnoiters, but a hawk appears, so first she must hide the lamb in some brush. To her relief, ahead she finds a flock of black sheep, but returns to find the hawk attacking the lamb, who has broken cover, and must fight the bird off.

To Lassie's relief, the black sheep accept the black lamb. But a white lamb is loose in the flock of black ones, being reje