Part 2 of 2. Season 2 ends with Liv uncovering a shocking truth with far-reaching consequences, as a reeling Major looks to the future, and Clive gets closure. Meanwhile, Blaine makes a business proposal.
Part 1 of 2. Liv consumes the brains of someone from Ravi's past and it makes her want to sleep with every guy in Seattle. It also causes her to have some very intimate visions of Ravi. Meanwhile, Major is faced with a huge decision.
Paranoia ensues when Liv and Blaine consume the brains of a conspiracy theorist and investigate theories that may or may not exist. Meanwhile, Liv researches Major's new friend; and Ravi makes a surprising discovery.
A Dungeon Master is killed and the probe reveals that he was up to more than just 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.
Liv shares the brain of a former daredevil with her new boyfriend and the experience brings them closer. Meanwhile, Blaine returns to his old ways; Ravi makes progress in his new research; and a discovery is made that could put Major in grave danger.
Liv and Clive try to solve the murder of a very charming, but womanizing, preschool teacher and bring his jealous girlfriend Piper in for questioning. Meanwhile, Peyton is assigned a very interesting case; and Blaine finds himself in a bad situation.
To help Clive solve the murder of an irresponsible narcissist, Liv consumes her brain and literally becomes a hot mess. Meanwhile, Peyton learns some shocking news; and Ravi experiences a major setback.
Clive's patience is tested when Liv consumes the brain of a murder victim who had the reputation of being the ultimate office gossip. Meanwhile, Blaine and Peyton continue to grow closer as they wait to see if Ravi is able to reverse the effects of the cure; and Major is one step away from fulfilling a promise.
To help Clive solve the murder of a lifestyle guru, Liv consumes the victim's brain and takes on his Zen approach to life. Meanwhile, Ravi's old boss, Katty Kupps, gets closer to discovering the truth and gets closer to Ravi; Blaine and Peyton continue their budding friendship, much to Ravi's dismay; and Major struggles a bit at his new job.
Liv, Clive and Ravi investigate a fatal car accident and suspect foul play was involved. Starving, Liv and Major consume the brains of the accident victims, a father and his angsty teen daughter. Meanwhile, Clive is questioned about a family that was murdered and is forced to reveal his past history with them; Peyton extends an olive branch to Ravi; and Major hits a road block in his search for Natalie.
Season 3 begins with Liv discovering there are more zombies living in Seattle than she previously believed and that a private military contractor is employing a small zombie army that is preparing for the day humans learn of their existence. Meanwhile, even though Major was exonerated for the crimes of the Chaos Killer, he is still considered a pariah. He manages to land a job with the only place that will hire him; and Blaine is accused of lying.