The Best Episodes Written By Craig Engler

Warren and our heroes must stop Zona from launching operation "Black Rainbow".

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.

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

Doc and Addy try to convince Lucy's family to follow them; Murphy tests 10K's allegiance.

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

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.

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.

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