Mack attempts to go on a real date with Addy, but ends up stuck in some Groundhog Day-like nightmare.

Shaken by the death of one of the team, something snaps in Murphy, and Warren is unable to stop him and the others from committing an atrocity as misplaced revenge.

Three years into the zombie apocalypse, a ragtag team of everyday heroes comes together to transport the only known survivor of the zombie virus from Upstate New York to a lab in California, in hopes of using his blood for a vaccine. A zombie baby proves to be an early obstacle, and what they don't know is that their last, best hope for a vaccine is hiding a dark secret that threatens them all.

Doc and our heroes are reunited with Sketchy and Skeezy when they take refuge in a working barber shop full of mysterious characters, one of whom Doc knows but can't remember from where.

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.

A pack of wolves stalks an injured and alone 10k.

As Doc explains his version of American history to George, Sketchy and Skeezy reenact Doc's stories about the Founding Fathers; Warren and the others go to the bakery that invented bizkits in search of the secret ingredient.

Doc must spirit walk again to help save the Chief of the Water Keepers and get the water flowing to Newmerica.

In New Jersey, the survivors run out of fuel and embark on a dangerous mission to replenish their supply. Meanwhile, Cassandra's past comes back to haunt her.

Our heroes arrive in the farming outpost that produces flour for bizkits and find it overrun by zombies.

The team is captured by an Unseen Force and enslaved in an elaborate underground facility, forced by their mysterious captors to perform a series of bizarre, dangerous tasks.

Warren and the others encounter a mysterious stranger who they think is a grave robber, but they're something much more.

Warren and George search for Lt. Dante, who may be part of an underground network helping Talkers flee human vigilantes.

Altura militiamen force Talkers to mine a hazardous waste landfill for the secret ingredient to bizkits.

The survivors visit Warren's home town in Central Illinois, but will they find her long missing husband? Oh, yeah - there's also a zombie tornado that leaves everyone in danger.

A pregnant Serena tracks down Murphy. The survivors stumble across a hidden Mennonite farm with new dangers.

The team finds an abandoned Air Force base and discovers what looks like alien technology.

Following Warren's dream, the team doesn't stop while crossing The Great Pile, a seemingly endless landscape of rubble and destruction.

Pacifica is bombed and the heroes decide to follow the Talker Underground to stop whoever is behind the attacks.

Warren and the others are reunited with Addy in Limbo, an underground casino run by Murphy and his Blends, that shelters Talkers on the run from Altura Militia.

With some help from an outpost of renegade hackers, Warren and George hack Altura's defenses and discover Estes' secret plan.

What's worse than a zombie? An army of zombies (as in, literally a zombie army). Plus, 10K's mysterious past revealed.

The two groups of survivors reunite in Utah, where they come upon an all-female commune that seems like paradise—that is, until someone ends up dead.

The survivors search for a "natural" cure for the virus at a greenhouse that's being guarded by zombie-plant hybrids.

While Murphy is falling for his baby girl, the rest of the team is suspicious of her; Vasquez sneaks away for a meeting; 10K makes a difficult decision.