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Action thriller

Onslaught (2026): Cast, Ratings, Box Office & Ending

Onslaught (2026) movie poster

Onslaught is a 2026 action thriller directed by Adam Wingard, starring Adria Arjona as Celeste, Dan Stevens and Rebecca Hall. It runs 1 hour 32 minutes and earned $3.4 million worldwide on a $15 million budget. Critics gave it 60 on Metacritic.

worldwide gross
$3.4M
Echo Score
65
Metascore
60
budget
$15M
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Onslaught (2026) movie poster
Released
Runtime
1h 32m (92 min)
Director
Adam Wingard
Genres
Action , Horror , Sci-Fi , Thriller
Original language
English
Budget
$15M
After the credits
No No extra scene
The story

What Is Onslaught About?

The premise of Onslaught without spoilers. The whole story and the ending explained are in the plot summary further down.

When a rogue squad of genetically engineered super soldiers break loose in the desert, a badass Army sniper must unleash hell to protect her young daughter.

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Cast & crew

Onslaught Cast & Characters

Adria Arjona leads the cast as Celeste, with Dan Stevens as Hans Kammler and Rebecca Hall as Hanna Kammler. Directed by Adam Wingard; 20 actors are credited in all.

Ratings

Onslaught Reviews & Ratings

Critics gave Onslaught 60 on Metacritic. Our Echo Score gives it 65/100, strongest in art & craft (80) and weakest in character & emotion (48).

65 /100

Onslaught Echo Score Breakdown

Onslaught delivers a high‑octane visual experience that leans heavily on genre homage and stylized violence. Critics and fans commend its energetic direction, vivid cinematography, and a soundtrack that amplifies the brutal set‑pieces, which give the film strong replay appeal. However, the narrative suffers from thin character development and uneven pacing, leaving the plot feeling under‑cooked. The net result is a film that thrills on a sensory level but falters in depth, yielding a mixed but modestly positive overall impression.

Our own 0–100 rating, built from five aspects: art, character, story, the sensory experience and how well a film rewatches.

  • Art & Craft 80

    In terms of direction and visual craftsmanship, Onslaught showcases confident set‑pieces and a gritty aesthetic that recalls classic horror‑action influences. Reviewers note the film’s kinetic camera work and effective use of practical effects, which sustain its momentum. Nonetheless, occasional mismatched tonal shifts dilute the overall cohesion, resulting in a solid but uneven artistic execution.

  • Character & Emotion 48

    When evaluating performances and emotional depth, the film falls short of its ambitions. Critics point to indistinct character arcs and limited chemistry, while audience members highlight a few standout moments from the lead actress and supporting cast. The overall impression is a rudimentary ensemble that lacks nuanced development.

  • Story & Flow 52

    The narrative structure of Onslaught is uneven, with a premise that promises originality but is hampered by inconsistent pacing and a focus on future sequels rather than resolution. While some reviewers enjoy the mad‑science concept, many cite a lack of substantive plot progression that leaves the story feeling underdeveloped.

  • Sensory Experience 78

    Onslaught excels in its sensory presentation, delivering loud, blood‑splattered set‑pieces and a pulsating score that reinforce its grindhouse vibe. Critics praise the vivid color palette, sharp sound design, and the film’s capacity to overwhelm the viewer intentionally. This emphasis on visual and auditory intensity compensates for narrative shortcomings, creating a memorable, if abrasive, experience.

  • Rewatch Factor 65

    The film’s high‑energy action and stylized violence lend it a certain replay value for genre enthusiasts, who appreciate its homage to past horror‑action titles. Nonetheless, the thin storyline and underdeveloped characters limit its lasting appeal, making repeated viewings enjoyable primarily for the spectacle rather than deeper narrative engagement.

Plot

Onslaught Plot Summary & Ending Explained

What happens in Onslaught from start to finish, spoilers included, with a timeline of 14 key events and the ending explained. The opening is below; the full summary is a 3-minute read.

Spoilers ahead

The film begins with Celeste, portrayed by Adria Arjona, an ex-army sniper, honing her shooting skills on some pumpkins outside her trailer. The tension in her arms is evident as she even uses her ring to inflict a small bruise on herself, which surprisingly assists her focus and steadies her aim. Meanwhile, Dr. Hans Kammler (played by Dan Stevens) and his wife Hanna (depicted by Rebecca Hall) seem to be starting their day with an unusual intimacy. Hans departs on a helicopter for his laboratory while Hanna watches from below, concerned.

Full summary

The whole story of Onslaught, scene by scene, with the ending explained

Read the full summary
Box office

Onslaught Box Office & Budget

Onslaught grossed $3.4 million worldwide on a $15 million budget, 22% of what it cost. $3.3 million came from the US and Canada and $96,938 (3%) from the rest of the world.

2026 box office

Worldwide gross

$3.4M

22% of its budget back

US & Canada
$3.3M
International
$96.9K
Budget
$15M
US & Canada 97% Rest of the world 3%
Videos

Onslaught Trailers & Videos

9 videos: 3 trailers, 1 clip and 5 featurettes.

All 9 videos
Official Trailer
  • Trailer Official Trailer (4K)
  • Trailer Official Trailer 2
  • Clip Prepare for the Onslaught
  • Featurette double down on the onslaught of senses
Quiz

How Well Do You Know Onslaught?

10 questions about the story, each with a hint if you get stuck. Pick an answer to see whether you were right.

Question 1 of 10

  1. Question 1: not answered
  2. Question 2: not answered
  3. Question 3: not answered
  4. Question 4: not answered
  5. Question 5: not answered
  6. Question 6: not answered
  7. Question 7: not answered
  8. Question 8: not answered
  9. Question 9: not answered
  10. Question 10: not answered

What is the name of the ex-army sniper protagonist of the film?

Seen Onslaught?

FAQ

Onslaught FAQ: Cast, Box Office & Runtime

Runtime, release date, director, cast, box office, ratings and post-credit scenes of Onslaught, each answered in a sentence.

How long is Onslaught?

Onslaught runs 1 hour 32 minutes (92 minutes).

When was Onslaught released?

Onslaught was released on September 4, 2026.

Who directed Onslaught?

Onslaught was directed by Adam Wingard.

More films by Adam Wingard

Who is in the cast of Onslaught?

Onslaught stars Adria Arjona as Celeste, Dan Stevens as Hans Kammler and Rebecca Hall as Hanna Kammler, among 20 credited actors.

How much did Onslaught make at the box office?

Onslaught grossed $3.4 million worldwide ($3.3 million domestic, $96,938 international) on a budget of $15 million.

How is Onslaught rated?

Onslaught has 60 on Metacritic and 84% on TMDB.

Does Onslaught have a post-credit scene?

No. Onslaught has no extra scene during or after the credits.

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