After the Max Rager massacre, Clive deals with learning that zombies are alive and well in Seattle. Meanwhile, Vivian tells Liv and her friends about her plans for a zombie homeland, and Ravi tries to find a way to cure the retrograde amnesia caused by the cure.moreless
Vaughn successfully sells Max Rager to a military contractor and throws a party to celebrate. Liv and Major sneak in to get to the basement lab and free Drake and the other imprisoned zombies.moreless
The victim: Chris Mancuso, the killer: Logan Tenwick.
Chris is an environmental consultant while Logan is a research scientist for Turner, a biomedical firm for which Chris has done an environmental assessment. Chris is found dead inside a sensory deprivation tank at a day spa. This was part of Chris' routine upon returning from business trips. The case turns when Betty discovers that not only was Chris poisoned, but that he is also carrying an active and unknown pathogen. Since the killer was likely infected when he came in contact with Chris and has infected others since, finding him takes on a new urgency.
While Liv and Clive investigate the murder of the lawyer they arrested on their last case, Liv eats the corpse's brain and picks up his gambling habit. Meanwhile, she and Major wait for Ravi to find a way for them to make love, and Blaine's father makes a move against his son.moreless
While Liv deals with the rejection of her family and Major, she takes on the case of an old man who was crushed to death beneath the car he was working on. Meanwhile, Vaughn approaches Major with an interesting proposal.moreless
When Norma's brother, Caleb, appears, Dylan must help build bridges. Meanwhile, Norman gets to know a townie girl and Norma's battle to stop the bypass gets a new ally.
The fight against the Observers intensifies and a Fringe team member plans an attack on his own.
Peter takes extreme measures when the team learns of a way to stop the Observers from changing Earth's atmosphere and wiping out humanity.