Adam Wingard’s Onslaught Action Horror Trailer

The action horror genre is about to get a serious dose of adrenaline, thanks to director Adam Wingard, who is back in the driver’s seat for an intense new thriller titled Onslaught. Known for crafting gripping narratives like You’re Next and The Guest, Wingard is delivering a high-octane spectacle that promises to be as explosive as it is visceral.

A24 has just released a new trailer for Onslaught, offering fans their biggest glimpse yet at the film ahead of its September 4 release. The visual reveal signals that this is not just another horror flick, but a relentless action experience rooted in high-stakes survival.

At the heart of the chaos is Adria Arjona, who stars as a former Army sniper thrust back into the fray when her world shatters. Faced with unimaginable danger, she must rely on every ounce of her training to shield her young daughter from an unfolding nightmare.

The core premise of Onslaught is brutally simple: when a rogue squad of genetically engineered super soldiers breaches their confinement in the desert, one determined woman must unleash hell just to survive. It’s a story about raw skill meeting desperate motherly instinct.

The ensemble cast brings a powerhouse combination of talent to the screen. Alongside Arjona, the film features an impressive roster of stars, including Dan Stevens, known for his commanding presence, alongside Drew Starkey and Rebecca Hall.

The supporting roles are stacked with action pedigree: Michael Biehn steps into the role of an elite mercenary leader, while Reginald VelJohnson and Eric Wareheim ground the story with compelling figures from the trailer park community caught in the crossfire. Adding to the intensity is UFC Light Heavyweight Champion Alex “Poatan” Pereira, who reportedly brings real-world combat expertise to the fray.

The narrative also sees a return to familiar creative pairings, as Wingard reunites with longtime collaborator Simon Barrett, who has previously worked with the director on acclaimed films like You’re Next and Godzilla x Kong: The New Empire.

Onslaught is backed by a formidable team, co-financed by A24 and Lyrical Media. Be prepared for a relentless viewing experience, as the film earns an R rating for its strong bloody violence, gore, sexual material, and language—confirming that Wingard is not holding back when exploring the darkest corners of genre filmmaking.