Alex is caught in a web of distrust between his brother, his best friend, a beautiful stranger and the renewed dreams of the slaughter of his family.

After another deadly shark attack, Ellen Brody decides she has had enough of New England’s Amity Island and moves to the Caribbean to join her son, Michael, and his family. But a great white shark has followed her there, hungry for more lives.

Andie Bergstrom, an astronaut eagerly awaiting her first trip to space, runs a summer camp for teenagers with her NASA-employed husband, Zach. One night during an engine test, Andie and four teenage campers are accidentally shot into space. Together, the group — which includes Kathryn, a pilot-in-training, and Tish, a ditz with a perfect memory — must work together to operate the spacecraft and return home.