Underworld
Underworld streams in the US on Starz Apple TV channel, and free with ads on Plex and Plex Channel, as of October 5, 2026.
Sometimes revenge is the best therapy.
A crook sets out to get revenge on the thugs who hurt his father in this bloody noir-style crime drama. After being released from prison, Johnny Crown goes after Frank, one of the mobsters involved in a series of Father's Day killings. But Johnny isn't certain Frank is responsible for his father's injuries and seeks help from a sex therapist to make sure he's got the right man.
Where to watch
9 apps, one package.
This title is not on an app included with Spectrum, but Spectrum Stream TV Signature includes HBO Max, the Disney+ and Hulu bundle, Peacock, Paramount+ and more. Spectrum Internet is required and sold separately.
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Starz Apple TV channel
Plex
Plex Channel
