Signal One (2026)

Kernel Score: 67% · 23 ratings · Rated R

Genres: Mystery, Science Fiction

Released: 2026-06-05

Runtime: 112 minutes

Where to watch Signal One

  • Stream: Hulu
  • Rent: Prime Video, Apple TV, Google Play, YouTube
  • Buy: Prime Video, Apple TV, Google Play, YouTube

US availability, updated 2026-10-16.

Overview

A computer scientist is invited by a tech billionaire to join his private facility on a Caribbean island to investigate extraterrestrial matter on Earth. When they make contact beyond our world, chaos erupts as we’re left to wonder: do they come in peace?

Signal One parents' guide: ages 15+

Parents need to know that Signal One is an R-rated sci-fi mystery about first contact with extraterrestrial intelligence turning chaotic.

  • Violence & scariness: Some — Apocalyptic threat and chaos elements suggest tense, possibly intense scenes, consistent with its R rating.

Fresh Kernels AI-assessed from the official R rating, publicly documented content. A guide for families, not an official rating.

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Director

Jonathan Sobol

Cast

  • Isabelle Fuhrman as Annika
  • Josh Hutcherson as Charlie
  • David Thewlis as Perry
  • Dennis Quaid as Sam Houston
  • Vanessa Smythe as Mother
  • Kiera Allen
  • Raoul Bhaneja
  • Ronnie James Hughes
  • Adam Moryto
  • Beatrice Schneider as Young Klara

Signal One FAQ

Is Signal One good?

Signal One has a 67% Kernel Score on Fresh Kernels from 23 audience ratings.

Where can I watch Signal One?

In the US you can stream Signal One on Hulu and rent it from Prime Video, Apple TV, Google Play and YouTube.

Is Signal One OK for kids?

Signal One is rated R. Fresh Kernels suggests ages 15+. Parents need to know that Signal One is an R-rated sci-fi mystery about first contact with extraterrestrial intelligence turning chaotic.

What movies are like Signal One?

If you liked Signal One, try Contact, Moon, The Creator and Disclosure Day.