The first official trailer for Onslaught dropped on June 1, 2026, and it brings non-stop action. The movie comes from A24 and director Adam Wingard, the filmmaker behind Godzilla vs. Kong and The Guest. The trailer shows Adria Arjona transforming into a fierce warrior to save her daughter from genetically engineered killers. The film is scheduled to hit theaters on September 4, 2026.
A Former Army Sniper Faces Her Deadliest Mission
The story follows Celeste, a former Army sniper played by Adria Arjona. She lives a quiet life in a desert trailer park with her young daughter, trying to leave her violent past behind. But peace does not last long. A group of rogue super soldiers escapes from a nearby secret military base. These are not normal enemies. They are genetically modified killing machines, described as the “human equivalent of a heat-seeking missile”.
The trailer begins with Celeste enjoying simple moments with her daughter, blasting pumpkins off stumps. She notices Black Hawk helicopters flying toward the north and suspects something is wrong. Soon, chaos explodes as the super soldiers attack the trailer park. Celeste has no choice but to pick up her weapons again. She fights with guns, a chainsaw, and pure rage to protect her family.
An All-Star Cast With Action Veterans and Surprises
The cast of Onslaught brings together a mix of action legends and rising stars. Adria Arjona leads the film. She recently earned praise for her roles in Andor and Hit Man. Dan Stevens plays a German scientist working on the super soldier experiments. He worked with Wingard before on The Guest and Godzilla x Kong: The New Empire.
Rebecca Hall also joins the cast, connected to Stevens’ character in the story. Michael Biehn, known for The Terminator and Aliens, plays the leader of a mercenary team sent to stop the threat. Reginald VelJohnson from Die Hard plays a member of the trailer park community.
Drew Starkey from Outer Banks appears as a blonde character sent to clean up the military’s mess. Comedian Eric Wareheim from Tim and Eric also stars. UFC Light Heavyweight Champion Alex Pereira makes his Hollywood debut as a villain called “The Butcher”.
Alex Pereira Brings UFC Power to the Big Screen
Alex Pereira steps into the role of The Butcher, a terrifying super soldier. The trailer gives fans a short but strong look at the UFC star. Pereira brings his real-life fighting skills to the movie, including roundhouse kicks and powerful strikes. He currently competes in the UFC’s Light Heavyweight division and is one of the few fighters to become champion in two different weight classes.
The trailer dropped just days before Pereira faces Ciryl Gane for the interim heavyweight title at UFC Freedom 250 on June 14, 2026. Fans reacted with excitement on social media. One person wrote: “Poatan’s taking over Hollywood now too, man. CHAMA on the big screen and September 4 can’t come soon enough”. Another joked: “If he doesn’t kill someone with a left hook it’s not historically accurate”.
Adam Wingard Returns to His Action Horror Roots
Director Adam Wingard made a name for himself with smaller genre films like You’re Next and The Guest. He later moved to big-budget monster movies with Godzilla vs. Kong and Godzilla x Kong: The New Empire. Onslaught marks his return to the kind of raw, violent thrillers that fans loved.
Wingard co-wrote the film with Simon Barrett, his longtime collaborator. The pair previously worked together on You’re Next, The Guest, and segments of the V/H/S franchise. The trailer shows Wingard has not lost his touch. The action is brutal, fast, and relentless. One reviewer compared the film to Wingard’s own version of Terminator 2.
Fan Reactions to the Violent and Action-Packed Trailer
The Onslaught trailer quickly grabbed attention online. Fans praised the simple but effective premise. A super soldier goes rogue. A mother fights back. No complicated subplots. Just pure action.
One YouTube comment read: “This looks damn good.” Another viewer wrote: “Sounds like they’re making a new Universal Soldier“. Many fans noticed the connection to The Guest because of Dan Stevens’ involvement. Some wondered if Onslaught could be a secret sequel. According to the film’s details, Stevens plays a German scientist, not the same character from The Guest, but the similarity in tone is clear.
People also loved seeing action veterans like Michael Biehn and Reginald VelJohnson back on screen. The trailer ends with VelJohnson’s character warning the soldiers that they picked the wrong trailer park to attack.
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Release Date and Where to Watch Onslaught
Onslaught will release exclusively in theaters on September 4, 2026. The film opens against Paramount’s crime thriller By Any Means starring Mark Wahlberg and Yahya Abdul-Mateen II, as well as the horror film Buddy and the documentary Barbara Forever.
For viewers in the United States, the movie arrives on September 4. UK and Canada release dates typically follow the same weekend for major A24 releases. Australia and India can expect the film to release around the same time, though exact dates may vary by a day or two. As an A24 production, the movie will likely become available on digital platforms a few months after the theatrical run.
The MPAA has not yet announced an official rating, but the trailer’s extreme violence suggests a hard R-rating. The film runs with a lean, mean approach. No extra fat. Just action.
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