Like the previous season, this season of Black Mirror is also composed of three stories, showing the audience a cruel and realistic future world. "Be Right Back": A car accident took the life of Martha's (Hayley Atwell) boyfriend Ash (Domhnall Gleeson). On the recommendation of a friend, Martha used the information Ash left on social networks to create a fake Ash with artificial intelligence. At first, Martha could only hear the synthesized voice of Ash through her mobile phone. Soon after, the voice told Martha that there was a way to make Ash "really" return to her side. "White Bear": Tony (Lenora Crichlow) woke up from a coma and found herself in a strange room and lost her memory. During her coma, the world has obviously changed dramatically, the streets are full of ruthless onlookers, and she has become the prey of a killer. "The Waldo Moment": Waldo is a virtual blue bear that appears in late-night comedy shows, and behind him stands the voice actor Jamie (Daniel Rigby). Waldo's popularity has led the show to run for Congress in his image, and Jamie finds himself gradually becoming a puppet being manipulated.