Reed decides that they must leave the lagoon, but the Rita's way has been blocked by a barrier of logs, courtesy of the Gill Man. They try to use the winch to clear the logs, but the Gill Man snaps the line. Reed dons his aqualung (SCUBA tank) and attempts to remove the blockage from underwater while Williams goes hunting for the Gill Man with his spear gun. Williams shoots at the creature, who counterattacks. Reed drives off the creature with his spear gun, but Williams is fatally wounded and floats dead to the surface. Reed decides to try the Rotenone again. He dives down to the blockage armed with Rotenone. When the creature appears, he sprays him three times, slowing the creature down long enough for Reed to clear the blockage. While the crew winches away the logs, the creature climbs aboard the Rita, grabs Kay, and jumps back into the water with her, taking her to his cave. Reed follows but the creature attacks him. Dr Maia and Lucas (Nestor Paiva), the captain of the Rita, enter the cave from the land entrance and shoot the creature several times. Gill Man wanders out of the cave to the beach, walks off into the water, and swims away. In the final scene, Kay and Reed hug each other, while the Gill Man can be seen floating lifelessly.