Like Eve in the Garden of Eden, Nancy (Blake Lively) bites into an apple, excited to catch a few waves in paradise. But darkness lurks in the bright blue water, and soon sharks, unable to to resist the temptation, find a snack of their own — human flesh.

The Shallows, out June 29, is a tale of survival, like Jaws and Sharknado before it.

Proceed with caution, because after watching this, you may never feel safe going on vacation with a Sisterhood of the Traveling Pants alum again.