The next morning, Brody's teenage son Mike disobeys his father by sneaking out to go sailing with his friends after his love interest Jackie Peters goads him to, but his younger brother Sean catches him and encourages Mike to bring him along. After an argument at the dock, Marge, one of Mike's friends, playfully lets Sean come in her boat with her, and after a couple other grouping arrangements, they head out, going past a team of divers, led by instructor Tom Andrews. Moments after going underwater, one of the divers encounters the shark. Panicking, he rushes to the surface, causing an embolism. Soon after, the shark hits teenagers Tina Wilcox and Eddie Marchand; Eddie falls in the water and is killed by the shark.