Replicants are bioengineered humans, once designed by the Tyrell Corporation for use Off-world. After a series of violent rebellions, their manufacture was prohibited, and Tyrell Corp went bankrupt.
Niander Wallace acquired the remains of Tyrell Corp and created a new line of Replicants who obey.
A Replicant underground survives, led by the former combat model Freysa and her human partner Aahna Ashina, known as Ash, formerly a Blade Runner.
Twenty years ago, in 2019, Ash spared the Replicant Isobel Selwyn, a Replicant replica of industrialist Alexander Selwyn's wife. Together with Alexander's human daughter, Cleo, Isobel escaped to the off-world colonies. Now Isobel has gone missing, rumored to be back on Earth and Cleo has returned to find her.
Searching for the late Alexander Selwyn's research into Replicant physiology Niander Wallace has sent his creation Luv, the first Replicant Blade Runner, to hunt down both Cleo and Isobel. Believing that Isobel holds the secret to Replicant fertility, Wallace has ordered Luv to capture the girl at any cost and to kill anyone who comes into contact with her.
Meanwhile, Ash has been given a computer disc by Alexander's former Replicant bodyguard Hythe, which Ash discovers contains the information Wallace is looking for.
Cleo sought out Ash, however, Luv tracked them both down before Ash could help her find Isobel. Ash gave Luv a blank disc claiming it was what Wallace was after before escaping in a Spinner and heading off to join Freysa. Thwarted, Luv returned to Wallace who introduced her to a Replicant created from the DNA of Ash and codenamed Rash...
