While investigating a murder case in which there is no body or 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; Blaine is up to his old tricks.
Liv, on fitness guru brains, and Clive continue investigating a murder that has body or evidence associated with it; Peyton approaches councilman Zed with a request; Liv surprises Major with a thoughtful gesture just when he needs it the most.
While investigating the deaths of Seattle's winning dance duo, Liv and Ravi go under cover as dance partners to size up the other contestants; Peyton confronts Major after she's told that one of his soldiers was out of line.
The head of a successful traffic app company suspiciously dies; Cornell's ex-girlfriend takes over the company and makes an interesting reveal to Liv and Clive; Peyton focuses on maintaining positive zombie relations in the city.
An independently wealthy 19-year-old dies; Liv attempts to cheer up Ravi after he learns some unfortunate news; Clive has a nasty fall at the crime scene; things suddenly go from bad to worse for Blaine.
After consuming the brain of the ultimate matchmaker, Liv is determined to find the perfect match for Major; Blaine tries to protect himself; Don E. considers an interesting offer.
While investigating the murder of a chef at a high-end restaurant, Liv consumes her brain and becomes an unrelenting perfectionist; Major works to find out who is betraying the commander.
Liv and Ravi each consume the brain of a very dislikable car salesman and inherit his competitive nature.
Liv and Clive investigate the murder of a beauty pageant contestant; a rival contender claims to be innocent and Liv consumes the murdered woman's brain in hopes of tracking down the murderer.
Liv consumes private eye Mick Chisel's brain in hopes of breaking down how his gruesome murder took place.
Liv and Clive investigate the death of a drag queen, which leads Liv to eat and shift into the queen's brain; Ravi reaches out to Major with an interesting request.
Liv makes a devastating discovery.
The human versus zombie war finally comes to a head.