Bob and Lassie visit the wild, surf-tossed Oregon coast where logs washed downriver into the bay are creating a problem, where they meet Jake Peterson, an old acquaintance of Lassie, a former forest ranger who now is a crab fisherman. The logs prove even more dangerous next day, when Jake takes Lassie out fishing with him.

Huddled together in his disabled boat, Lassie and injured Jake Peterson ride out the tumultuous surf. But as the boat heads for the Cliffs, Bob and the Coast Guard begin a highly dangerous rescue.

With Bob at a meeting, Lassie visits overnight with the Frasers, a blind man and his wife who live in the woods without any way of communicating with the outside world. When Edie Fraser is hurt during a walk, Clint and his guide dog Ginger start for help, but Lassie must save them from a cougar's attack and go herself.