Season 4

Warren's apocalyptic dream of a Black Rainbow sends the group on a mysterious new mission while fighting for their lives against unkillable MAD-Z's.

Driven by Warren's dream of a black rainbow, Warren and Murphy make their way back to the mainland.

When Sun Mei and Red vanish, 10K and the group must decide whether to keep looking for them, or give up and press on to Newmerica.

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

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.

Lucy fights to save Murphy's life; Warren and the others battle a biologically modified Franken-Zombie guarding a clue to Warren's dream.

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.

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

The group explores an abandoned TV news station and encounters news crew zombies triggering haunting flashbacks from day one.

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.

Warren's dream leads our heroes back to Mercy Labs. Images in her dream drive her to search for the destroyed complex and find a mysterious cylinder of gas which she compelled to bring along.

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

The secret of Warren's dream is unlocked when they reach their final destination, the "Black Rainbow" facility.