No Mercy, Parts 1 & 2 The gang comes together in a flashback, to protect the town against a new, dangerous enemy, The Man. New allies form, as they battle zombies like never before.
A New Mission When Warren's group is taken prisoner by a high-tech team, their street smarts outweigh the advanced equipment on this Z-slaughter spree.
Murphy's Miracle Murphy's mission to launch his headquarters in Spokane gains momentum when he saves a girl's life. Elsewhere in the Apocalypse, Warren and the motley gang meet Wally the mailman in a bizarre Zombified town. Meanwhile, Citizen Z takes his new friend, Kaya, across the Arctic tundra to Camp Northern Light.
Escorpion And The Red Hand The allure of becoming a Blend entices people to Murphytown. Dr. Merch works on a vaccine and booster shot to restore freewill, but when he stabs 10K with it, mutiny invokes. Elsewhere in the Apocalypse, Warren and the gang are stuck in the middle of a bloody battle waged by the Red Hand, a vigilante group led by Escorpion.
Little Red And The WolfZ Injured, alone, and suffering from the side effects of the booster Merch gave him, 10K barely manages to escape his relentless Blend pursuer. Just as he breaks free, he finds himself stalked by a pack of Zombie Wolves. But wait... are they wolves? In 10K's lowest moment, 5K and Red appear and help him find the strength to survive. Murphy, meanwhile, goes over Dr. Merch's complicated notes while absentmindedly snacking on her brains.
Doc Flew Over The Cuckoo's Nest Doc finds himself taken captive by a psychotic nurse and her surviving mental patients in an homage to One Flew Over the Cuckoo's Nest but with Zombies. Doc discovers that 10K is also being held prisoner by the lunatics, who plan to give him a lobotomy to cure him of his delusions about a "mission to capture a blue man and save the world." Doc and 10K must escape their captors, but not before defeating Electro-shock Zombies and Flaming Zombie Psychopaths on Wheels. No, really.
Welcome To Murphytown The Man learns about Lucy's existence and attempts to kidnap Murphy, but underestimates the strength of Murphy's followers. Elsewhere in the Apocalypse, 10K is back with the Heroes, able to tell Warren about Murphy's growing empire and secret mission. At Camp Northern Light, Kaya is turning out to be quite the tech-savvy second in command.
Election Day On the road to find Lucy in Illinois, Doc and Addy are forced off the road by a retro presidential limo. Turns out Sketchy is running for "President of the Apocalypse" with Skeezy as his campaign manager. Doc and Addy follow them to Wall Drug, South Dakota and witness the somehow lucrative, always entertaining train wreck that is Sketchy and Skeezy.
Heart Of Darkness Warren and the others inspect Murphytown, and realize they are going to need a bigger army to extract Murphy.
They Grow Up So Quickly Doc and Addy try to convince Lucy's family to follow them and Murphy tests 10K's allegiance.
Doc's Angels Doc tries to find a way to communicate with Warren, but instead encounters something much more menacing.
Duel Enders, Zombies, and Wild Beasts, oh my! The Man can dishes out more twisted horrors, but none of it stops Addy in her pursuit of Lucy. Meanwhile, Lucy makes The Man's life a living hell, summoning all manners of Zombie obstacles.
Everybody Dies In The End Addy and Doc have no idea where Lucy is when they're approached by a very unusual Zombie! They catch up with Warren and the others but the reunion is short-lived. The Man has Lucy captive at the highest point for miles, and while the Heroes must battle Zona Blends, Enders, Zombies, the fate of humanity hangs in the balance in this season finale literal cliffhanger.