Tempest (1) (S15E19)

Bob and Lassie explore the rugged, wave-battered Oregon coast, where logs swept downriver into the bay are causing issues. There, they run into Jake Peterson, a familiar face to Lassie and a former forest ranger who now earns his living as a crab fisherman. The situation escalates the following day when Jake invites Lassie to join him on a fishing trip, and the logs pose an even greater threat.