Attack of the Unknown (2020) - Movie Browser

Track, discover and find where to watch TV shows and movies.

Discover

Movies
TV Shows
Browse
Topics

Account

Watchlist
Watched
Ratings
Profile

Legal

Privacy Policy
Terms of Service

© 2026 Movie Browser. All rights reserved.

Data provided by TMDB

backdrop

backdrop

Attack of the Unknown (2020) - Movie Browser

Watch

Overview

Action Horror Science Fiction

A SWAT team transporting a vicious crime syndicate boss must fight their way out of a county detention center during a catastrophic alien invasion.

Content warning

Director

Brandon Slagle

ReleasedAug 28, 2020

Runtime1h 43m

StatusReleased

FilmCore

Top Cast

Tara Reid

Elizabeth

Robert LaSardo

Miguel 'Hades' Aguirre

Richard Grieco

Vernon

Tania Fox

Cuffs

Jolene Andersen

Hannah

Tasha Reign

Feature Dancer #1

Roberta Sparta

Nurse

Douglas Tait

Maddox

Cheryl Prater

Nurse Kanani (Receptionist)

Mallorie Vanghel

Person on Street #6

Robert Donavan

Weller

Michael Forsch

Officer Bialek Hanson

Attack of the Unknown | Official Trailer

Attack of the Unknown | Official Trailer

Gallery

Recommended

Monster Hunters movie poster (2020)

Monster Hunters

Afterburn movie poster (2025)

Afterburn

Code 8 Part II movie poster (2024)

Code 8 Part II

Osiris movie poster (2025)

Osiris

Abduction movie poster (2019)

Abduction

Monsters of Man movie poster (2020)

Monsters of Man

Occupation: Rainfall movie poster (2020)

Occupation: Rainfall

Replicant movie poster (2001)

Replicant

Altered movie poster (2025)

Altered

Spectral movie poster (2016)

Spectral

Attack on Titan movie poster (2022)

Attack on Titan

Border Hunters movie poster (2025)

Border Hunters

Infestation movie poster (2009)

Infestation

Screamers movie poster (1995)

Screamers

Timescape movie poster (1992)

Timescape

More Like This

Dark Prism movie poster (2015)

Dark Prism

Bloody Blacksmith movie poster (2016)

Bloody Blacksmith

Blood Covered Chocolate movie poster (2022)

Blood Covered Chocolate

Night of the Zomghouls movie poster (2022)

Night of the Zomghouls

ShadowMarsh movie poster (2022)

ShadowMarsh

Whatever Beneath the Bandages movie poster

Whatever Beneath the Bandages

Night Carnage movie poster (2025)

Night Carnage

Devil's Knight movie poster (2024)

Devil's Knight

The Torture: Beranak Dalam Kubur movie poster (2024)

The Torture: Beranak Dalam Kubur

Faces of Death III movie poster (1985)

Faces of Death III

Winnie the Pooh: Blood and Honey movie poster (2023)

Winnie the Pooh: Blood and Honey

Tales from the Cannibal Side movie poster (1998)

Tales from the Cannibal Side

Surf Nazis Must Die movie poster (1987)

Surf Nazis Must Die

666: Kreepy Kerry movie poster (2014)

666: Kreepy Kerry

American Guinea Pig: Sacrifice movie poster (2017)

American Guinea Pig: Sacrifice