Sometimes, you come across movies that aren't particularly remarkable on paper but still manage to entertain thanks to their unconventional approach. Onslaught is an excellent example. Director Adam Wingard, known for films such as The Guest and Godzilla x Kong: The New Empire, delivers a stylish piece of action horror that understands one simple thing: a movie doesn't have to be complicated to be fun.
The story is straightforward, the characters could have been better developed, and it takes a little too long for everything to get going. Nevertheless, there is something about Onslaught that makes it difficult to dismiss entirely. The movie has a distinct identity, an appealing visual approach, and a wonderfully uncomplicated attitude toward entertainment.
It's a case of style over substance, but when that style works as well as it does here, that isn't necessarily a problem.
What Is Onslaught (2026) About?
In Onslaught, a secret military experiment goes horribly wrong when a group of genetically engineered super soldiers escapes from a classified facility in the desert. Their escape quickly turns into a bloody nightmare, with the escaped soldiers leaving a trail of destruction in their wake.
Former military sniper Celeste, played by Adria Arjona, becomes caught up in the events and must do everything in her power to protect her daughter. Along the way, she faces a threat that cannot simply be eliminated with a few well-placed bullets.
The premise hardly sounds revolutionary. Secret experiments, rogue super soldiers, and a protagonist forced to rely on her military skills once again are familiar ingredients that have appeared in countless movies before.
Nevertheless, Onslaught manages to feel surprisingly original despite its straightforward premise. Much of that comes down to how the movie presents its story. Rather than explaining everything in painstaking detail, Wingard relies on imagery, atmosphere, and a visual style that gives the film a personality of its own.
Onslaught Is a Simple Movie with a Surprisingly Distinct Identity
One of the first things you notice about Onslaught is that it doesn't try to be particularly complicated. The story is easy to follow, and most of its major developments are fairly predictable. The movie has little interest in building an elaborate mythology or introducing convoluted plot twists.
That might sound like criticism, but it also fits what the movie is trying to achieve.
Onslaught primarily wants to deliver an energetic genre experience. It has a clear idea of the atmosphere it wants to establish and largely sticks to that vision. As a result, the movie feels more original than its premise might suggest.
The world in which the story takes place is also established reasonably well. There is something unsettling and threatening about the various locations and characters, yet the movie rarely feels the need to explain exactly how everything works.
That approach works in its favor. Not every movie needs to lay out its entire backstory for the audience. Sometimes, it's more enjoyable when viewers are given room to interpret the world for themselves.
At the same time, the film could have taken this approach a little further. Its premise is interesting enough to spark curiosity, but the story doesn't always do enough with that potential.
Onslaught's Visual Style Is More Important Than Its Story
If there is one aspect that helps Onslaught stand out, it is the movie's visual presentation.
The film often looks fairly cheap. Some scenes lack the polish of a major Hollywood production, and the way certain events are presented occasionally feels rough around the edges.
On paper, that could be a problem. In practice, however, it works surprisingly well with the movie's overall aesthetic.
Rather than trying to conceal every limitation, Onslaught frequently turns them into an advantage. Its rougher appearance reinforces the feeling that you're watching an unconventional genre movie that relies primarily on atmosphere, violence, and visual energy.
That gives the film character. It doesn't always look particularly refined, but it has a certain directness that is missing from many slicker modern action movies.
Its visual approach is also a major reason why Onslaught manages to feel fresh despite its simple story. The movie doesn't constantly try to impress with an elaborate plot. Instead, it focuses on how its scenes are constructed and presented.
Not everything works equally well, but the style is strong enough to keep the movie afloat.
Onslaught Feels Like a Forgotten Action Movie from the 1980s
Anyone with a soft spot for gritty action and genre movies from the 1980s and early 1990s will probably find plenty to enjoy in Onslaught.
The movie evokes those older productions in which a straightforward premise serves primarily as an excuse to string together a series of violent, strange, and occasionally downright absurd situations. Not every character needs to be deeply developed, and the story doesn't necessarily need to lead somewhere particularly original.
As long as the atmosphere is right and the movie delivers enough entertainment, that's often more than sufficient.
That is precisely the attitude Onslaught embraces. At times, it feels as though it could have come from another era, yet it manages to retain an identity of its own.
This isn't a movie that relies exclusively on nostalgia or constantly tries to demonstrate how much its creators love older genre films. The influences are obvious, but they serve as the foundation for a film that ultimately wants to do its own thing.
That deserves some credit. There is a difference between a movie that simply tries to imitate older films and one that understands what made those genre movies so enjoyable in the first place.
Onslaught belongs more to the latter category.
Onslaught Delivers Good, Dumb Fun — In the Best Possible Way
Let's be honest: not every movie needs to offer a profound examination of the human condition.
Sometimes, you just want to spend an hour and a half watching something you can follow without having to think too hard. A movie filled with bizarre situations, violent confrontations, and characters who find themselves in trouble and have to fight their way out.
Onslaught understands that perfectly well.
In the best possible sense of the phrase, this is gloriously dumb entertainment. The movie takes its premise seriously enough to establish a coherent world, but it also has enough of a feel for its genre to avoid making everything unnecessarily serious.
That makes for an enjoyable viewing experience once the movie finally gets going. There is enough eccentricity in the premise to keep things interesting, while the visual approach gives the events more personality than you might expect from the story alone.
Unfortunately, the film doesn't always manage to maintain that energy.
Onslaught's Biggest Problem: It Takes Too Long to Get Going
Despite its relatively short runtime of approximately an hour and a half, Onslaught surprisingly struggles to get its story moving.
The premise is simple enough, but by the time the protagonist becomes properly involved in the main storyline, roughly an hour has already passed. That is a considerable amount of time for a movie that ultimately aims to deliver a straightforward action horror experience.
A slow buildup isn't necessarily a problem. It can help establish the characters, locations, and underlying threat, giving the eventual confrontations more weight.
The problem is that Onslaught doesn't always make the best use of that time. The movie introduces various elements and characters but doesn't consistently provide enough narrative progression in return.
As a result, it often feels as though the film is hitting the brakes when you'd rather see it put its foot on the accelerator.
That is a shame, because the premise lends itself to a much more direct approach. The movie could have started building toward its eventual confrontations considerably earlier.
Even once the action begins, Onslaught doesn't always manage to maintain its momentum. Some scenes feel as though they go on slightly too long, while other moments would have benefited from a little more breathing room.
The result is a movie that is frequently entertaining but never quite develops the momentum you'd expect.
A Strong Cast Whose Characters Deserve Better
Another notable aspect of Onslaught is its cast. With names such as Adria Arjona, Dan Stevens, Rebecca Hall, and Michael Biehn, the movie features a collection of actors who bring plenty of personality and experience to the table.
Adria Arjona serves as the film's central figure as Celeste. Her character fits comfortably within the kind of straightforward action premise Onslaught is trying to establish. The former soldier who finds herself caught up in a violent situation once again is hardly a new concept, but Arjona brings enough conviction to the role to make it work.
The presence of Dan Stevens and Rebecca Hall also ensures that the film has more to offer than a collection of generic action figures.
However, there is a problem here.
The movie introduces several interesting characters and features actors who could clearly have done more with their roles. Unfortunately, the story never fully capitalizes on those opportunities.
Some characters seem to exist primarily because they are needed to push the plot in a particular direction at a given moment. Their backgrounds, personalities, and relationships could have received considerably more attention.
As a result, much of the cast's potential remains untapped. It isn't so much that the actors fall short, but rather that the script doesn't give them enough material to work with.
This is a recurring problem in movies that rely heavily on style and atmosphere. When the story leaves little room for character development, even interesting characters can quickly become secondary to whatever happens next.
Unfortunately, that is often the case with Onslaught.
Why Onslaught's Style Ultimately Matters More Than Its Substance
Ultimately, Onslaught is a movie in which style matters more than substance.
Under normal circumstances, that would be a significant limitation. A movie can look beautiful, distinctive, or unconventional, but if there isn't much of interest beneath the surface, there may be little left to make a lasting impression.
With Onslaught, however, things are a little different.
The film uses its style so consistently and effectively that you're willing to overlook some of its shortcomings. The story is simple, the characters could have been better developed, and the pacing isn't always particularly efficient, but the movie has a clear understanding of what it wants to be.
That makes it more interesting than an ordinary action movie that simply jumps from one action sequence to the next.
There is personality in the way Onslaught presents its world. Its somewhat cheap-looking aesthetic, old-school genre sensibilities, and straightforward approach often complement one another, giving the movie a distinct identity.
It's just a shame that this strong visual foundation isn't supported by a story that makes an equally strong impression.
With a tighter script, better pacing, and more attention to its characters, Onslaught could have become a considerably more compelling film.
As it stands, however, it's primarily a movie you'll appreciate for how it presents its ideas rather than for the ideas themselves.
Conclusion: Onslaught Is Entertaining but Leaves Plenty of Potential Untapped
Onslaught is an unconventional action horror movie that draws much of its appeal from its visual style and its love of old-school genre filmmaking.
The film has a simple premise, yet it manages to give it a surprisingly original spin. Its somewhat cheap-looking aesthetic frequently works in its favor, its world is established in an interesting way, and the overall experience feels like something from the 1980s or early 1990s without relying exclusively on nostalgia.
On top of that, Onslaught delivers exactly the kind of uncomplicated entertainment you sometimes just want to enjoy.
However, there are several shortcomings. It takes too long for the story to get going, the pacing frequently comes to a standstill, and the talented cast isn't always given enough material to make the most of its characters.
As a result, the film ultimately falls short of what it could have been.
That doesn't mean Onslaught is a failure, though. On the contrary, it has enough personality to distinguish itself from many similar genre movies. It knows what kind of experience it wants to deliver and succeeds often enough in delivering it.
It's simply a shame that the film doesn't lean into its strengths more often and keep the momentum going.
Rating: 6/10
