Working together on a mission, Liv, Detective Babineaux and Major crash Vaughn’s Super Max Rager party, where Rob Thomas performs a song from his solo career. Meanwhile, Blaine reaches out to Peyton for help, which does not sit well with Ravi.

Liv and Ravi are in need of help and find an unlikely ally in Blaine. Detective Babineaux and Dale Bozzio pursue a new lead on an old case. Meanwhile, when Major finds himself in a world of trouble, sleazebag Brant Stone comes to his rescue. Vaughn’s evil side reaches a whole new level of mean.

Liv and Clive investigate the murder of Miss Teen Seattle beauty pageant contestant, Laurie-Beth Spano, who went into anaphylactic shock onstage in 1999 and ended up in a coma. At the time, police arrested rival contender Velma Charlet for spiking Laurie-Beth's makeup and she was given a four-year sentence. In present day, Laurie-Beth has passed away and Clive has arrested Velma, for her murder. Velma claims to be innocent and Liv consumes Laurie-Beth's brain in hopes of tracking down the murderer.

As Liv and Clive try to track down Cameron and determine his connection to Max Rager, Blaine interrogates Major about the missing brains.

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.

While investigating the murder of Eleanor Barba, a chef at a high-end restaurant, Liv consumes her brain and becomes an unrelenting perfectionist who knows just how to break a person to their very core. Meanwhile, Major is on a mission to find out who is betraying the commander.

As Liv, Ravi and Clive race to finalize the cure, Peyton faces a showdown with Blaine, and Major takes a bold gamble to save Seattle once and for all.

Four teenagers hit Sebastian shortly after he becomes a zombie, and he kills one of them. When the body turns up, Liv eats the brain and tries to find out who is responsible. Meanwhile, Ravi and Peyton plan a trip to San Francisco, but Liv gets a visitor who interrupts their plans.

While Liv and Clive investigate the murder of a coffee shop owner with an extremely sunny outlook on life, Ravi tests the new cure on a rat before administering it to Major. Meanwhile, Boss discovers who has been moving in on his turf.

When Liv consumes the brains of someone from Ravi's past, not only does it have her wanting to sleep with every guy in Seattle, she also begins having some very intimate visions of Ravi. Meanwhile, Major is faced with a huge decision.

When someone close to Major dies of an apparent suicide, Liv consumes the brains resulting in a mix of reality and paranoia. Clive questions Major and learns of a secret computer file that may contain important details in the investigation – and finding the killer.

Liv and Babineaux investigate the death of a highly competitive student; Liv becomes more like the girl she used to be after consuming the victim's brain; Blaine looks to Ravi for help.

When Liv, Clive and Ravi arrive at the scene to investigate a fatal car accident, they begin to suspect foul play was involved. Both starving, Liv and Major consume the brains of the accident victims, a well-meaning father and his angsty teenage daughter. Meanwhile, when Clive is brought in for questioning about a family that was murdered, he’s forced to reveal his past history with them. Lastly, Peyton extends an olive branch to Ravi, and Major hits a road block in his search for Natalie.

Liv and Clive investigate the murder of a pretentious theater actor. Meanwhile, Ravi makes a huge sacrifice for Peyton. Lastly, Blaine makes a startling discovery.

While Major whisks Liv out of Seattle for her own protection, Ravi eats the brains of a narcissist to help Clive investigate Brother Love for murder.

The outside world further isolates Seattle while Peyton, Ravi, Clive and Major race to save Liv from execution for her work as Renegade.

While Major faces a changing of the tide in Seattle, Liv, Clive and Ravi undertake a mission impossible in Atlanta to retrieve the final zombie cure.

Liv, Detective Babineaux and Ravi investigate the mysterious death of a peewee basketball coach. Liv, consumed with overzealous coach brains, gives Major a much needed pep talk. Meanwhile, things get a little crazy when Blaine and Ravi are forced to work together to recreate the cure. Lastly, Detective Babineaux receives a surprise visit from Suzuki's widow Helen.

The three newest bodies in Seattle turn up decapitated, leaving Liv without brains to eat to solve their murders. While she helps Clive anyway, Liv hears about a new drug dealer in Seattle. Meanwhile, Peyton turns to Ravi for support and considers quitting her job, and Major is forced to prove his loyalty to Max Rager when Vaughn learns that someone Major declared a non-zombie... is.

Liv, Ravi, and Major get a lead on the Utopium-tainted corpses when the man who may have killed them turns up dead. Meanwhile, Blaine discovers that his father left his money to his maid in case he died due to foul play, and Clive and Dale realize that Major is involved with Blaine.

After a scientist is murdered, Liv and Babineaux are surprised to learn where she worked; Ravi gets a visit from Blaine at the morgue; Liv finds out something about Drake; Major is confronted by Vaughn du Clarke.

When a Dungeon Master is killed, Liv and Clive discover he was up to more than just playing in his mother's basement. Meanwhile, Blaine's experiment does not go as planned. Lastly, Ravi stumbles across some new information that could prove deadly.

Peyton and Liv find themselves on a surprising wild goose chase. Ravi is terrified when the zombie truth hunters' plans are revealed. Elsewhere, Major finds comfort in an unexpected - and perhaps unwelcome - friend.

While investigating a murder case with no body and no brain to eat, the only evidence Liv and Clive have to work with is a grainy video and a little bit of blood found at the crime scene. Meanwhile, Blaine is up to his old tricks.

While investigating the deaths of Gulliver and Nancy, the dynamic duo of Seattle's winning dance team, Liv and Ravi go undercover as dance partners to size up the other contestants aka the prime suspects. Meanwhile, Peyton confronts Major after she's told that one of his soldiers was out of line during a routine lice check at the school. Lastly, Clive and Bozzio receive a shocking surprise during Lamaze class.