Onslaught (2026) Review: Wingard's Bloody, Emotional

The setup is pure pulp poetry: a rogue squad of genetically engineered super soldiers, designed by the ominously cold Dr. Hans Kammler (Dan Stevens), escapes their desert containment facility. Their mission is simple - kill everything in their path, and their path leads straight toward a remote desert outpost where Celeste (Adria Arjona), a decorated Army sniper living off the grid, is trying to raise her young daughter, Daisy (Blake Kennedy). Celeste has left the war behind, but the war has found her. With local lawman Josiah (Reginald VelJohnson) and battle-hardened contractor Baylor (Michael Biehn) offering backup, Celeste must turn her isolated home into an Alamo, using every trick in her sniper’s playbook to protect her child from a squad of unstoppable killers led by the hulking, silent “Butcher” (Alex Pereira).

Wingard, who has always had a knack for genre pastiche, approaches “Onslaught” with a feverish commitment. This isn’t his love letter to kaiju or found footage; this is his ode to the video-store classics of the 80s and 90s - think “Aliens” meets “Assault on Precinct 13,” with a sprinkle of “The Hitcher” for good measure. The film opens with a bravura sequence of quiet domesticity that gets shattered with visceral abruptness, establishing a tone of constant, creeping dread. The desert setting is used brilliantly - endless, unforgiving space that offers no comfort, only hideouts and kill zones.

The super soldiers themselves are a fascinating blend of practical effects and CGI. They move with a predatory grace, and their skin has a waxy, wrongness to it. The Butcher, played with terrifying physicality by UFC fighter Alex Pereira, is a screen presence you can’t look away from - a minimalist monster who communicates in grunts and violence. But the film’s greatest asset is Arjona. She doesn’t just play a badass; she plays a mother whose love has calcified into a lethal instinct. Her Celeste is pragmatic, exhausted, and utterly unbreakable. The script gives her moments of tenderness with her daughter that are brief but impactful, making the subsequent carnage feel earned.

The action sequences are masterclasses in tension. Wingard holds his shots, letting us feel the distance between Celeste’s position and her targets. He understands that a sniper movie is about patience and geometry as much as loud explosions. The film’s most thrilling sequence involves Celeste using the desert’s natural geography - canyons, rock formations, and abandoned mining equipment - to funnel the soldiers into kill boxes. It’s smart, strategic warfare that never sacrifices spectacle for logic.

Dan Stevens is having a blast as the villainous Dr. Kammler, swapping his “Downton Abbey” refinement for a chilling clinical detachment. He’s the puppeteer, but the film wisely keeps him mostly on the periphery, focusing on the ground-level horror. Eric Wareheim provides some oddball comic relief as Kovacks, a bumbling assistant to Baylor, and his presence helps alleviate some of the tension before the third act’s relentless descent into nightmarish violence. Michael Biehn, a veteran of genre warfare, adds gravitas to his few scenes, and a cameo from... well, you’ll see it coming and still cheer.

The horror elements are where the film earns its genre tag. The soldiers aren’t just tough; they’re horrifying, with a capacity for endurance that borders on zombie-like immortality until their specific weaknesses are discovered. Wingard doesn’t shy away from body horror, showing us the gruesome consequences of genetic tampering. The final act, which takes us into the depths of the research facility, leans heavily into this, sacrificing some of the taut desert thriller momentum for a more chaotic, monster-movie romp. It’s less intellectual but arguably more entertaining.

Pros:

• Arjona’s star-making turn: She carries the emotional and physical weight with aplomb.
• Efficient pacing: At 92 minutes, it never overstays its welcome.
• Genuine tension: Wingard knows how to build suspense before releasing it in violent bursts.
• Strong practical effects: The soldiers feel tangible and scary.
• A pitch-perfect tone: It straddles grindhouse grit and slick action without falling apart.

Cons:

• Thin secondary characters: Everyone except Celeste and Daisy feels like a character archetype.
• Third-act shift: The facility finale is fun but less distinctive than the desert siege.
• Familiar premise: It borrows heavily from classic films, offering no new narrative ground.

“Onslaught” is a muscular, unpretentious action-horror hybrid that delivers exactly what its poster promises. It’s a film that respects its audience’s intelligence while catering to their basest cinematic desires - the thrill of a well-aimed bullet, the terror of an unkillable foe, and the primal need to protect one’s child at all costs. Wingard’s direction is confident, and Arjona proves she can headline a blockbuster with ease. It’s not art, but it’s expert craftsmanship. In a landscape of overlong, self-important tentpoles, “Onslaught” is a refreshing shot of adrenaline - a lean, vicious, and surprisingly moving reminder of why we go to the movies to be entertained, and occasionally, to be scared. A solid 7.2 isn’t just a rating; it’s a recommendation.