Liv has discovered there is a private military contractor employing a small zombie army, Major lands a job with the only place that will hire him, and Blaine is accused of lying.
Liv, Clive, and Ravi investigate a fatal car accident. Clive is brought in for questioning about a family that was murdered, forcing him to reveal his past history with them.
Liv helps Clive solve the murder of a lifestyle guru and takes on his zen approach to life, and Ravi's old boss, Katty Kupps is getting closer to discovering the truth.
Clive's patience is tested when Liv consumes the brain of a murder victim who was an office gossip. Meanwhile, Blaine and Peyton grow closer and Major might fufill a promise.
When Liv consumes the brains of a dominatrix, her bossy and controlling personality makes everyone a little uncomfortable, especially Clive. Meanwhile, Blaine and Peyton have a heart-to-heart.
Liv becomes unpredictable after consuming the brain of an irresponsible narcissist. Ravi suffers a major setback in the search for a cure. Peyton receives some shocking news.
Liv and Clive work together to solve the murder of a charming, womanizing preschool teacher. Plus, Peyton is assigned to an interesting case, and Blaine enters a bad situation.
Liv and her new boyfriend bond by sharing a daredevil's brain. Blaine returns to his old ways. Ravi's research produces a major breakthrough which puts Major in danger.
A dungeon master is killed and the probe reveals that he was up to more than playing in his mother's basement. Meanwhile, Blaine's experiment does not go as planned; and Ravi stumbles across some new information that could prove deadly.
When Liv, Blaine and Don consume a zombie truther brain, paranoia follows. Liv reveals the truth about Major's new "friend". Ravi discovers something shocking.
Liv uncovers the shocking truth about the virus and the far-reaching consequences of the vaccine. Majors exams his future as a human. Blaine makes a business proposal.