Now streaming · 5 credits

Watch Attack of the Unknown online in HD

4.220201h 43mActionScience FictionHorrorHD · Subtitles

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“They're here for blood”

About Attack of the Unknown

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

Attack of the Unknown (2020) is a action/science fiction film running 1h 43m, directed by Brandon Slagle. It is available in HD on Cineby for 5 credits. Create an account, add credits and the unlock is yours permanently. Use the player controls for subtitles, quality and fullscreen.

Watch Attack of the Unknown online

Once unlocked, the film starts in the player at the top of this page. If the first source is slow, the player rotates to a backup automatically. Your purchase is stored in your account, so Attack of the Unknown opens straight into playback on any return visit. Progress is saved on this device.

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Attack of the Unknown FAQ

How much does it cost to watch Attack of the Unknown?

Attack of the Unknown costs 5 credits on Cineby. Credits are $1 each, and an unlock is permanent — once bought, the film stays in your account and can be rewatched without paying again.

Do I need an account to watch Attack of the Unknown?

Yes. Create an account, add credits, then unlock the film. Signing up is free and only takes an email and password.

Can I watch Attack of the Unknown again after unlocking it?

Yes. The purchase is attached to your account, so returning to this page later opens the player directly. You are only charged once.

Who directed Attack of the Unknown?

Attack of the Unknown was directed by Brandon Slagle.

Can I watch Attack of the Unknown on my phone?

Yes. Cineby is responsive and the player works in mobile browsers. Tap fullscreen on the player for a larger picture, and use the CC control for subtitles.

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Watch Attack of the Unknown (2020) Online in HD — Full Movie | Cineby