Attack of the Unknown

Name: Attack of the Unknown
Genre: Horror, Science Fiction, Action
Released: 2020-01-01
Rating: 3.4
Cast: Tara Reid, Robert LaSardo, Richard Grieco, Tania Fox, Jolene Andersen

2020| 1h 43m| IMDb 3.4

Attack of the Unknown (2020) is currently streaming in the UK on Prime Video. Last updated 20 January 2026.

Streaming availability last checked 20 January 2026

Horror Science Fiction Action

A SWAT team’s routine transfer of a Mob kingpin becomes a fight for survival when they’re trapped inside a county prison during an alien invasion.

Director: Brandon Slagle

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£8.99/mo

Streaming info last checked: 20 Jan 2026

Cast

Tara Reid

Elizabeth

Robert LaSardo

Miguel 'Hades' Aguirre

Richard Grieco

Vernon

Tania Fox

Cuffs

Jolene Andersen

Hannah

Tasha Reign

Attack of the Unknown

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Cast

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