The team is rerouted to a Colorado lab where they hope to find Dr. Merch.

An encounter with a seeming Utopian enclave and a religious cult results in a game changer when the survivors travel near Branson, Mo.

Murphy is kidnapped by a group of outlaws trying to crack the "Fort Knox of Oxycontin." As the survivors battle drug-enhanced zombies, a startling discovery is made about Murphy's abilities.

As they travel across Nebraska, the group finds themselves trapped in a morgue as a literal zombie tsunami engulfs them; at the same time, Citizen Z gets a visitor who might not be who he seems to be.

The survivors struggle to recover from a shocking death; and in Kansas they happen upon a gun show that makes the zombie apocalypse look calm.

The survivors square off against radioactive zombies when they arrive in a South Dakota town that's on the brink of nuclear disaster.

The survivors make their way through the mean streets of Philadelphia, where they cross paths with a group of psychotic outlaws with ties to one of their own.

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 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.

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.

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.

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