Homer saves the day and his friends during a work-related cruise by proving to be "unsinkable." Then Mr. Burns, looking for a way to assure the public that the Springfield Channel (his personal nuclear waste dumping site) is perfectly safe, tricks Homer into swimming the channel as a publicity stunt. But what's a dip in the water without a little childhood trauma and a killer whale out to settle an old score.
by Boothby and Ortiz