In the year 2049, the integration of Replicants—bioengineered humans created by the Tyrell Corporation—into society has turned them into servants and slaves, designed originally for off-world utility. After a sequence of violent rebellions, the production of these beings was outlawed, leading to the downfall of Tyrell.
In the mid-2020s, Niander Wallace (Jared Leto) revolutionized synthetic farming to combat a looming global food crisis caused by collapsing ecosystems and the absence of slave labor. Acquiring the remnants of the Tyrell Corporation, Wallace introduced a new line of obedient Replicants. However, older models, known as Nexus 8s, with their prolonged life spans, remain in hiding as they are systematically hunted down for their potential violence.
In California, a Blade Runner named K (Ryan Gosling) serves the LAPD, tasked with "retiring" rogue Replicants. K shares his life with his holographic companion, Joi (Ana de Armas), a cutting-edge AI product of Wallace Corporation. K acquires an Emanator device, enabling Joi to accompany him wherever he goes, liberated from her stationary projector.
Each return to LAPD HQ subjects K to rigorous obedience evaluations consisting of nonsensical questions that he must navigate. The turning point comes when K retires a rogue Replicant named Sapper Morton (Dave Bautista) and discovers a hidden box on Morton's farm containing remains. Forensic tests confirm that the remains belong to a female Replicant who mysteriously died during an emergency cesarean section, challenging the long-held belief of Replicant sterility. K’s superior, Lieutenant Joshi (Robin Wright), fears this revelation may incite a war, thus instructing K to eliminate the evidence and the Replicant child.
When K visits Wallace Corporation headquarters, the deceased female Replicant is identified as Rachael, an advanced model created by Dr. Tyrell. K uncovers Rachael's relation to former Blade Runner Rick Deckard (Harrison Ford), but data from that era is scarce due to a post-rebellion blackout that wiped much of the evidence. Wallace, who aspires to unravel the mystery of Replicant reproduction for further colonization, becomes increasingly focused on this secret.
To achieve his ambitions, Wallace sends his lethal Replicant enforcer Luv (Sylvia Hoeks) to retrieve Rachael's remains and track down the child. During his progress, K revisits Morton's farm and recalls a date - 6-10-21 - carved into a tree that links back to a childhood memory of a wooden toy horse, intensifying his contemplation of existence beyond mere programming.
Upon learning of twins aligned with the birth date, K finds loopholes in the records that lead to a broader mystery entangled in his own identity. He realizes that the truth surrounding his existence may mean he is the offspring of Rachael. After escaping LAPD's tests, he transfers Joi to a mobile emitter so she can accompany him freely. Joi’s intention to enhance K's experience unwittingly draws them into Wallace’s larger plans.
Following clues that lead him to the ruins of Las Vegas, K encounters Deckard, igniting a fierce confrontation. Once allegiance is established, Deckard reveals his connection to Rachael's child, further complicating the intricacies of K's journey. Meanwhile, Luv's ruthless ambition to retrieve Deckard brings despair, leading to a series of destructive encounters that ultimately separate K from Joi, who meets her end during Luv's assault.
As K navigates the chaotic world, the Replicant freedom movement intervenes, opening a path for him to embrace his identity. In a climactic sequence, K fights against overwhelming odds to protect Deckard and ultimately leads him to Dr. Ana Stelline ([Carla Juri]), the architect of memories who is revealed to be his daughter.
In the final act, K confronts the frailty of existence and the essence of his identity before succumbing to life-threatening injuries. In his final moments, he lies back under the vast sky, satisfied as Deckard approaches his daughter amidst a narrative rich with love, sacrifice, and the quest for true connection.
