There is a specific brand of cinematic joy found in “aggressively stupid” movies—films that lean so heavily into their ridiculous premises that they become endearing. Director Tommy Wirkola, the man behind the cult-favorite Dead Snow, usually understands this assignment perfectly. However, with his 2026 Netflix release “Thrash,” the gears of B-movie madness seem to be grinding in a pool of lukewarm salt water. It is a film that presents a “Shark-icane” scenario but lacks the bite to make it memorable, resulting in a project that is professionally competent yet creatively hollow.
A Submerged Setup
The film transports us to the coastal town of Annieville, South Carolina, as it prepares for the arrival of Hurricane Henry. This isn’t just any storm; it’s a Category 5 monster that characters suggest should be the first “Category 6.” It’s a classic disaster-movie setup: the sea wall collapses, the town floods, and—thanks to a conveniently ruptured tanker truck of animal blood—the local waters are soon teeming with ravenous bull sharks.
At the center of the chaos is Lisa Fields (Phoebe Dynevor), a heavily pregnant woman trapped in her car as the surge hits. She is eventually rescued by Dakota (Whitney Peak), an agoraphobic young woman struggling with the recent loss of her mother. Meanwhile, across town, a trio of foster siblings—Dee, Ron, and Will—deal with their predatory foster parents while bull sharks patrol their flooded hallways.
A Narrative Divided
The most glaring issue with “Thrash” is its refusal to commit to a singular focus. Drawing inspiration from Alexandre Aja’s Crawl, the film attempts to up the ante by jumping between two distinct storylines that never actually intersect. We watch Lisa and Dakota fight for survival in one house, while the Olsen siblings engage in a dynamite-fueled standoff with sharks in another.
This structural choice effectively kills the momentum. Every time the tension builds in Lisa’s harrowing labor-amidst-the-flood arc, the film cuts away to the foster kids’ subplot. It feels like two separate short films stitched together by the common thread of shark attacks, leaving the audience feeling more “distracted than invested.”
Performances vs. Script
Despite the thin material, the cast remains the film’s strongest asset. Phoebe Dynevor brings a grounded, visceral energy to her role, selling the physical agony of labor and the terror of her situation with remarkable sincerity. Djimon Hounsou, playing Dakota’s uncle and marine biologist Dale Edwards, provides the “scientist-philosopher” gravitas we’ve come to expect from him. He is the anchor of the film, even when he’s tasked with delivering some truly “clunky exposition.”
The foster kids (played by Alyla Browne, Stacy Clausen, and Dante Ubaldi) do their best with a script that treats their situation like a dark cartoon. Their foster parents are depicted as mustache-twirling villains who hoard welfare checks and steaks, making their eventual demise feel less like horror and more like “mutilation porn” for the audience’s satisfaction.
Technical Ebbs and Flows
Visually, the film is a mixed bag. The practical sets used in the first half—claustrophobic houses and flooded streets—create a genuine sense of unease. However, as the film transitions from a survival thriller into an all-out action flick, the VFX begins to falter. The sharks, which are effectively hidden in the shadows early on, look increasingly “rubbery and digital” when showcased in the broad daylight of the finale.
The true hero of the production is the sound design. The constant, oppressive thrum of the rain, the bone-crunching sounds of shark attacks, and the shifting creaks of collapsing houses provide a layer of immersion that the script fails to provide.
Conclusion: A Lean, Mean, but Forgettable Machine
At a crisp 80 minutes (excluding credits), “Thrash” doesn’t overstay its welcome. It is “lean and mean,” moving with a propulsive energy that keeps it from being a total disaster. Yet, it lacks the “fluid originality” needed to stand out in a subgenre dominated by giants like Jaws or modern hits like Crawl. It is a “Netflix and Chomp” movie—perfectly serviceable for a Friday night when your brain is on standby, but unlikely to leave a lasting impression once the water recedes.
CINEMA SPICE RATING: ★★½ (2.5/5)