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 replica of industrialist Alexander Selwyn's wife. Together with Alexander's human daughter Cleo, Isobel escaped to the Off-world colonies.
Searching for the late Alexander Selwyn's research into Replicant physiology, Niander Wallace 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 ordered Luv to capture the girl at any cost and to kill anyone who comes into contact with her.
Ash discovered that a computer disc given to her by Alexander's former Replicant bodyguard Hythe contained the information Wallace is looking for. Luv tracked them down, however Ash and Cleo managed to escape and set out to find Freysa, hoping she could help them locate Isobel.
Luv returned to Wallace who introduced her to a new Replicant created from Ash's DNA, codenamed 'Rash', and the two of them resumed the hunt for Ash and Cleo.
Together with the runaway Replicant, Lexi, Ash and Cleo set off for San Francisco in an old pickup truck, but were attacked en route by a biker gang who shot and gravely injured Cleo...
