For decades, the Pacific waters have been a dumping ground for atomic-testing debris, bacterial pollutants, pesticides, herbicides, and nuclear waste. Some ocean species died off. Others adapted. All too well.

Full Moon Bay is a quaint California fishing town undergoing change. One man fighting to usher it into the 21st century is eco-terrorist Hamilton Lux (Emmy Award winner Armand Assante, The Odyssey). The industrial millionaire is converting landmarks into tourist traps, constructing a monster of a luxury resort, raping the coast with his drilling, and trying to amass a stranglehold on small businesses—like the fishery run by Daniel and Brook (Daryl Hannah, Kill Bill) Wilder (John Schneider, Smallville). It’s Wilder’s struggle that signals the return of Daniel’s estranged brother, Phillip (Roark Critchlow, Days of Our Lives), a professor and environmental expert. But his welcome back is unsettled by something else threatening Full Moon Bay—it appears that a number of locals have been swallowed up off the Bay coastline, ripped to shreds, and eaten alive.

When Marine biologist Amy Zuckerman (Heather McComb, Party of Five) arrives to survey Lux’s questionable developments, she makes an alarming discovery: a beached Bull shark whose sensory organs exhibit violent tendencies—even after death. But the second anomaly fills her with dread: the unheard of phenomenon of a swarm of Great Whites, forty strong, cutting through the waters together with one horrifying purpose—to kill for pleasure. For Amy, Daniel, and Phillip, the only way to fight the man-eating army that’s growing in strength, number, and hunger is to venture out into the watery terrors. What’s waiting for them is beyond anything they could fathom.

Tourist season becomes feeding time in Shark Swarm, a jaw-snapping, bone-crushing ecological thriller miniseries about the day nature really goes wild.