Swamp (2026): Cast, Story and Release Details

Prepared by Movies Dock Editorial

Swamp follows Jamie and her friends as they return to a remote lake connected to her mother’s disappearance. When their car keys vanish, the group becomes stranded, forcing them to confront the possibility that the frightening creature described years earlier may be more than a story.

Swamp is a 2026 horror mystery thriller centered on a troubling family mystery and an isolated lake. Years after Jamie’s mother disappeared, Jamie returns to the location with friends, where an unsettling discovery leaves them unable to leave by car.

Directed and written by Ethan Zehr, the film combines a creature-related mystery with a confined survival setup. Its English-language production comes from the United States of America and is produced by Syndromedia.

Swamp movie details

Story without spoilers

Jamie Hart returns to a lake with her friends years after her mother vanished. Her mother had claimed to see a terrifying creature there, giving the location an ominous connection to the past.

The group’s visit takes a dangerous turn when the keys to their car go missing. Stranded at the lake, Jamie, Kayla, Caden, Ginny, Griffin and Oliver must contend with the growing uncertainty surrounding the creature and the circumstances that have trapped them there. The premise keeps the central mystery focused on whether the threat is real and what the group will uncover at the lake.

What to expect

Swamp is positioned as a blend of horror, mystery and thriller elements. The story’s isolated lake setting creates a clear sense of confinement, while the missing car keys establish an immediate obstacle for the characters.

The film also places its central supernatural question alongside Jamie’s personal connection to the location. Viewers can expect a story built around a disappearance, an alleged creature sighting and a group trying to find a way out of an increasingly dangerous situation. The supplied details do not establish further plot developments or the nature of the ending.

Cast and creative team

Mercy Cornwell plays Jamie Hart, with Roisin Byl as Kayla Summers, Ethan Zehr as Caden Blake, Mary Anadel as Ginny Cooper, Cade Warner as Griffin Danforth and Jaxon Cano as Oliver Mills. The cast also includes Cori Henderson as Brenda Martin, Quinn Vasbinder as Man in Woods and Zara Engles as Woman in Car.

Ethan Zehr directs and writes Swamp.

• Mercy Cornwell as Jamie Hart
• Roisin Byl as Kayla Summers
• Ethan Zehr as Caden Blake
• Mary Anadel as Ginny Cooper
• Cade Warner as Griffin Danforth
• Jaxon Cano as Oliver Mills
• Cori Henderson as Brenda Martin
• Quinn Vasbinder as Man in Woods
• Zara Engles as Woman in Car

Release and production context

Swamp is listed as a 2026 release from the United States of America, with a release date of November 13, 2026. It has a runtime of 2 hours and 12 minutes and is in English. The film is produced by Syndromedia and is listed under the horror, mystery and thriller genres.

Production companies: Syndromedia

Swamp official trailer

Watch the official trailer on YouTube

Movies Dock view

With its lake setting, missing-person mystery and stranded group, Swamp brings together several familiar horror and thriller foundations while keeping the creature question at the center of its premise. Its appeal will depend on how the film develops those unanswered questions, but the supplied details establish a focused setup for an isolated mystery.

Film data:
TMDB · IMDb