Vampires from the Deep

Mrs. McKittrey runs a lodge on the pretty southern side of Lake Wantocka in Maine. Her neighbor Caleb Betterman wants to buy the place from her. One night, he and a buddy sneak sea lampreys into the lake, planning to destroy all the fish. A few days go by, and Mark Trail and Cherry fly their plane to Mrs. McKittrey's land. She welcomes them and finds out they brought tons of fish to put back in the lake. While Mrs. McKittrey makes lunch, Mark and Cherry head to the water and let the fish go. They come back to eat. But Mark thinks he knows what killed the fish in the first place. He asks Mrs. McKittrey for a fishing net, and he and Cherry take a boat out to a good spot and drop anchor. Mark soon catches a lamprey in his net and figures out what really happened. Just then, a speedboat zooms out and smashes into their boat, breaking it to pieces. Mark and Cherry both fall into the water. Back on shore, Caleb Betterman corners Mrs. McKittrey and says he will hurt her if she does not sell him her lodge. But Mark shows up and stops him. After Mark proves he knows what Caleb did, Caleb writes a check for four thousand dollars to pay for putting new fish in the lake. The announcer tells you to come