It may be a sequel to one of Black Mirror ’s best episodes, but “USS Callister: Into Infinity” is among its worst. Set in the months after its predecessor, the entry finds the real-life versions of the characters colliding with their clones inside Infinity, the online game at the center of the story.

Black Mirror” kicked off its seventh season with a devastating first episode — and fans are absolutely loving every depressing second of it.

Six new episodes add to Charlie Brooker's Netflix anthology series, which also includes one holiday special and an interactive film.