Encounter at Trinity: The big whale round-up at Trinity Bay, Newfoundland, is brought to the screen with a realism not often found in fish stories. Cameras are on hand to record the annual sea drama as herds of pothead whales are driven inshore by fishing boats and killed in shallow water. There is tense excitement as, their escape cut off, the marine monsters fight for their lives. Reporter Fred Davis is told about the commercial uses of whale meat and whale products, particularly in mink farming.