Visually, the episode is a pitch-perfect parody of the original Star Trek , specifically deconstructing tropes like the egomaniacal captain.

The episode serves as a sharp takedown of abusive power and the dangers of retreating into an isolated, digital universe where one can act without moral restraint.

It explores the nature of consciousness and whether digital "cookies" or clones deserve rights and empathy.

is the first episode of the fourth season of the anthology series Black Mirror , released on Netflix on December 29, 2017.

Check out the official trailer for a glimpse into the retro-futuristic world of the USS Callister: