Phoebe Dynevor Battles Bull Sharks in Netflix Thriller 'Thrash'

Netflix released "Thrash," a shark thriller starring Phoebe Dynevor, on April 10, 2026. The film follows survivors of a hurricane-induced flood in a South Carolina town who must evade a school of bull sharks while sheltering in partially submerged houses. Director Tommy Wirkola's 80-minute film emphasizes visceral attack sequences over traditional suspense.

"Thrash" is set in the fictional town of Annieville, South Carolina, after Hurricane Henry intensifies from a Category 2 to a more powerful storm upon hitting unusually warm coastal waters. The hurricane breaches levees and floods the town, trapping residents in and around their homes as a school of bull sharks—smaller and faster than great whites—moves through the submerged neighborhood. The film's central character, Lisa, portrayed by Dynevor, is pregnant during much of the movie and goes into labor while evading the predators, creating an additional survival motivation once her infant son is born. Supporting characters include Dakota, a younger survivor played by Whitney Peak, and her marine-biologist uncle portrayed by Djimon Hounsou. Critic Owen Gleiberman noted in his review that while "Thrash" follows familiar shark-thriller conventions established by "Jaws," director Wirkola demonstrates "lively competence" and "fluid originality in the staging," particularly in a sequence involving a teenage foster child swimming through a basement while pursued by a great white shark. The film prioritizes graphic attack sequences over fear-based storytelling, with kills occurring at regular intervals throughout its runtime.

Context

Shark thrillers have long struggled to differentiate themselves from Steven Spielberg's 1975 "Jaws," which established the template for the genre. Most films in this category are considered derivative and claustrophobic, though exceptions like the 2003 film "Open Water" have achieved critical recognition. Director Tommy Wirkola, a Norwegian filmmaker, brings a structural approach to "Thrash" by treating the flooded neighborhood as a disintegrating safety zone—similar to how the shark boat functions in the final act of "Jaws." The film's 80-minute runtime, excluding closing credits, reflects a deliberate editorial choice to maintain narrative momentum without extending the premise beyond its core concept.

What's Next

"Thrash" represents Netflix's continued investment in creature-feature content, a category that has attracted significant streaming platform resources in recent years. The film's emphasis on graphic violence and visceral sequences over psychological tension signals an industry trend toward action-oriented horror rather than suspense-driven narratives. Dynevor's casting in an action-heavy survival role expands her filmography beyond her previous work in dramatic thrillers like "Fair Play," potentially establishing her in the action-thriller space for future projects.