Adam Wingard’s ‘Onslaught’ Review: A Style-Over-Substance Military Slasher

Adam Wingard’s military slasher thriller Onslaught, dropping in 2026, marks the director’s return to indie-spirited genre roots. Starring Adria Arjona as a former sniper facing off against genetically enhanced super-soldiers, the 92-minute romp trades corporate studio gloss for raw, high-octane 1980s action nostalgia.

Here is the kicker: even with a scattered script that takes nearly an hour to kick off its primary home-invasion sequence, Wingard manages to deliver an aesthetically accomplished, pulse-pounding throwback. According to Variety, the film serves as a fun bookend to a jam-packed movie summer just ahead of the fall spooky season.

The Bottom Line:

  • The Premise: A paranoid, gun-toting former army sniper must defend her home at a trailer park for U.S. veterans against government-engineered super-soldiers.
  • The Vibe: Heavily inspired by John Carpenter classics, featuring a discordant electronic score by Matthew Pusti and relentless violence.
  • The Catch: A sluggish first act spends too much time on shadowy government conspiracies and separate cleanup plots before delivering the promised carnage.

Unpacking the Return to Indie Roots After Franchise Blockbusters

For cinephiles tracking the career trajectory of Adam Wingard, Onslaught represents a fascinating pivot. After directing studio outings like Godzilla vs. Kong, a Blair Witch reboot, and a Netflix adaptation of Death Note, Wingard is back in the trenches. According to IndieWire, the film is a deliberate return to the distinct indie-horror energy that first put him on the map with 2011’s You’re Next and 2014’s The Guest.

ONSLAUGHT, Adria Arjona, 2026. ph: Richard Foreman Jr. / © A24 / courtesy Everett Collection
Photo: indiewire.com

Working alongside frequent collaborator and screenwriter Simon Barrett, Wingard builds a universe where the U.S. military-industrial complex directly funds mad science. In the film’s heightened parallel plot, German scientist Dr. Hans Kammler—played by Dan Stevens—and his domineering wife Hanna (Rebecca Hall) conduct bunker experiments on human weapons tied historically to Operation Paperclip. But the political commentary is largely window dressing. As Variety points out, these social themes are backgrounded entirely in favor of gory, whizzbang action and inventive kills.

Staging the Carnage: Pacing Pains and Genre Tributes

Structuring a lean, 90-minute genre exercise is notoriously tricky, and Onslaught stumbles slightly over its own narrative shoelaces. The movie splits its focus across three distinct narrative tracks: the mother-daughter dynamic between Adria Arjona’s Celeste and her young daughter Daisy (Blake Kennedy), the villainous bunker experiments featuring Dan Stevens, and a kinky, idiosyncratic hitman cleanup crew led by Drew Starkey’s Cyrus.

ONSLAUGHT, from left: Keil Zepernick, Alex Pereira, Steven Shelby Kekoa, 2026. ph: Richard Foreman Jr. / © A24 / courtesy
Photo: variety.com
Creative Element Production Detail Genre Influence & Execution
Director & Writer Adam Wingard & Simon Barrett Return to indie-budget style thrills reminiscent of The Guest.
Lead Performance Adria Arjona as Celeste Exhausted, give-no-fucks army veteran evoking a female Snake Plissken.
Primary Antagonists Dan Stevens & Rebecca Hall Nazi scientists overseeing genetically engineered, glowing-eyed super-soldiers.
Sonic Landscape Matthew Pusti (Composer) Discordant electronic score drawing heavy inspiration from John Carpenter’s Assault on Precinct 13.

According to IndieWire, the biggest structural hurdle is an opening hour that circles the drain with a pointless series of interstitials counting down the hours before the baddies break free. Yet, once the action finally converges at Celeste’s trailer park stronghold—where she fights alongside her wise neighbor Josiah, played by Reginald VelJohnson, and slapstick local sheriff Kovacks, played by Eric Wareheim—the audiovisual assembly pulls hard on the audience’s nerves.

Cultural Resonance and the Modern Horror Landscape

Wingard’s love letter to 1980s action flicks proves that practical grit and tactile sound design still hold currency.

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While Arjona anchors the chaos with a raw, hard-as-nails performance that elevates standard survival tropes, the film’s villains peak early in the narrative arc. When the super-smart enhanced soldiers drop their tactical edge to adopt the flailing cadence of Leatherface, viewers are forced to recalibrate their expectations from tactical military thriller to unadulterated B-movie romp.

ONSLAUGHT … This Broke My Heart | 2026 Review (Adam Wingard, The Guest Universe)
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Marina Collins - Entertainment Editor

Senior Editor, Entertainment Marina is a celebrated pop culture columnist and recipient of multiple media awards. She curates engaging stories about film, music, television, and celebrity news, always with a fresh and authoritative voice.

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