After the first manned mission to Mars ends in a deadly crash, mission controller Mackenzie 'Mack' Wilson assists an artificial intelligence system, A.R.T.I. Their investigation uncovers a mysterious object under the surface of Mars that could change the future of our planet as we know it.

Rescued as a child by the legendary assassin Moody and trained in the family business, Anna is the world’s most skilled contract killer. When Moody, the man who was like a father to her and taught her everything she needs to know about trust and survival, is brutally killed, Anna vows revenge. As she becomes entangled with an enigmatic killer whose attraction to her goes way beyond cat and mouse, their confrontation turns deadly and the loose ends of a life spent killing will weave themselves ever tighter.

Quan is a humble London businessman whose long-buried past erupts in a revenge-fueled vendetta when the only person left for him to love – his teenage daughter – dies in an Irish Republican Army car bombing. His relentless search to find the terrorists leads to a cat-and-mouse conflict with a British government official whose own past may hold the clues to the identities of the elusive killers.

His Dark Materials is set in an alternative world where all humans have animal companions called dæmons, which are the manifestation of the human soul. The series follows the life of young Lyra (Dafne Keen) who is an orphan living with the scholars at Jordan College, Oxford. As in Pullman's novel, Lyra discovers a dangerous secret that involves Lord Asriel (James McAvoy) and Marisa Coulter (Ruth Wilson). In her search for her missing friend, Lyra also uncovers a slew of kidnappings and its link to the mysterious substance called Dust.

Director Otto Bathurst explained that some elements of the book and film had been changed to give the series a more modern feel, compared to the original's Victoriana fantasy.

The series is set to premiere on 3 November 2019 on BBC One in the United Kingdom and 4 November on HBO in the United States and other markets.