Blood Quantum (2019)

In 1981, on the Red Crow Indian Reservation in Quebec, Canada, fisherman Gisigu catches a number of salmon, and observes that they continue to move after being gutted. Elsewhere that morning, Gisigu's son, sheriff Traylor, responds to a call about a dying dog that belongs to his ex-wife, nurse Joss. Traylor euthanizes the dog with a gun. He visits Joss and learns that their son Joseph has been arrested for vandalism in nearby Hollarbaster and is in jail with his half-brother Lysol. Traylor visits his father, who shows him the gutted yet moving salmon. Joss's dead dog reanimates in the trunk of Traylor's police car and Traylor shoots it again. Gisigu and Traylor set the dog and the fish on fire.

Traylor and Joss head into town to free Joseph from jail. Traylor, Joseph, Lysol, and police officer Shamu encounter an ill, violent man in the jail who bites Joseph on the arm. Joseph goes to a hospital where his white, pregnant girlfriend Charlie is waiting. That night, Traylor responds to a call from an indigenous man named Shooker. Traylor is attacked and bitten by Shooker's white girlfriend, whom Traylor beats with the butt of a shotgun. Traylor and Shooker head to a bridge where Joss, Joseph, and Charlie have found themselves after having escaped the hospital in an ambulance.

Six months later, the outbreak of flesh-eating "zeds" has become widespread and the Red Crow Reservation has been turned into a fortified compound. Its residents have learned that white people can be infected by the "zed" plague, while indigenous people seem to be immune. Lysol has become increasingly aggressive towards Joseph and others' tendency to bring outsiders—such as a man and his young daughter, the latter of whom was bitten by an infected person, as well as a girl named Lilith, who hides the fact that she has also been infected—to the compound.

That night, at Lysol's shelter away from the compound, Joseph finds a now-zombified Lilith chewing on Lysol's penis as he is crying on the floor from the pain. Joseph, Lysol and Moon then drive back to the compound with Lilith in restraints. Believing that the policy of letting in white survivors led to his disfigurement, Lysol snaps, stabbing Joseph with a knife and letting Lilith loose inside the compound. Traylor and Gisigu, who went on a mission to eliminate zombies at a gas station with fellow tribesmen Bumper and Shooker, return to the compound to find it overrun with zombies. They learn that Joss, Joseph, Charlie, and eight other survivors are trapped in the compound's basement. While rescuing them, Shooker is able to drive away some of the survivors, but Traylor is eaten alive by zombies so that his family can escape.

Joss, Joseph and Charlie escape with Gisigu and Bumper. While Gisigu and Joseph enter a church to stop two of Lysol's acquaintances from murdering a group of survivors, Lysol finds Joss, Charlie and Bumper. Lysol backstabs Bumper and heavily wounds him. Joss shoots Lysol, but not before Lysol is able to unleash a zombie from the trunk of a car. The zombie bites Charlie before Joseph kills it. Joseph and Gisigu lead a wounded Lysol away from the scene, and Joseph stabs Lysol. Gisigu alerts zombies to Lysol's location with a gunshot, and the zombies proceed to eat Lysol alive.

They think all hope is lost as the one remaining boat able to allow their escape is burning, but Shooker returns for them in two boats. He takes Bumper in his boat while Joseph, Charlie and Joss set out with the other boat. Armed with a sword, Gisigu stays behind on land to fight off the zombies and is implied to survive as he stands with the last zombie's head in his hand. On the boat, Charlie gives birth to a baby girl. As she is about to succumb to her bite wound, she asks Joseph to kill her before she transforms into a zombie, and he mournfully complies. The boat continues to drift in the water with the survivors' final fate unknown.