The Black Rainbow
Season 4, Episode 13
Znation gallery 413recap 11
Air date December 15, 2017
Written by Daniel Schaefer
Directed by Abram Cox
U.S. Viewers 0.56 millions
Episode Guide
"Mt. Weather"
"Welcome to the Newpocalypse"
"The Black Rainbow" is the thirteenth and final episode of Season 4 of Z Nation and the fifty-fifth episode of the series overall. It first aired in the United States on December 15, 2017 at 8/7c .

Plot SynopsisEdit

Operation Bitemark has made their way to Washington, DC: the final stop on this particular trail. Roberta Warren needs to find a way into the secret bunker that holds what she's been looking for: the fourth strike weapon called "Black Rainbow." Using a method in direct homage to Raiders of the Lost Ark, the team makes their way into the bunker with the zombified President in tow. They have a single goal: to find the control room for the fourth strike weapon (Black Rainbow) that will destroy all life on Earth and shut it down using the zombie President's thumbprints.

What they find is a place full of zombies who were always just trained to kill. There's even a sign that says that. Also in this bunker is Mr. Sunshine from Zona, who's been all over North America, even dropping in on Citizen Z.

A flashback reveals where Roberta's visions have been coming from all along. It turns out that while she was in her coma, Dr. Harold Teller woke her up and gave her all kinds of training to defeat the zombie apocalypse. He's come up with a cure and all the visions she's had throughout have been the result of her training. The canisters, and how to put them where they need to go, was implanted in her subconscious by Dr. Teller, and the canisters are a cure for the bacteria in the drone.

In the flashback, Dr. Teller shows Warren the canisters. She's been collecting them and imagining them all along, and now the time has come to load them into the drone and send them on their way to cure everyone. Knowing what she has to do, Warren instructs Murphy and Doc to activate the drone when she sends the signal, and then says her goodbyes to the team. She always knew this would be a one-way trip. Warren then goes to the hangar, easily defeats Mr. Sunshine as he was loading canisters into the drone, and swaps out the canisters in the drone for her own. The team does as they're told and the countdown begins once Warren attaches the canisters and signals to the team, but something's not right.

As Warren is climbing out of the drone, Mr. Sunshine attacks her and knocks her to the floor, triggering another flashback. That's when Roberta remembers the truth. While Dr. Teller told her that she was the answer to everyone's prayers, all that training had been so that she could deliver the Reset, the Black Rainbow, and kill every living creature on the planet to allow Zona to colonize the remains. It is revealed that Roberta was the Reset all this time. As Murphy battles Mr. Sunshine, accidentally breaking open a canister and spraying Murphy and Mr. Sunshine with the contents, the team watch as Warren climbs into the drone to try and unhook the canisters, but she can only remove one, ensuring that the drone is half-loaded with flesh-eating bacteria.

The drone flies off into the sky; as it climbs into the atmosphere, hundreds of miniature drones pour out of it and begin to spread in an arch, in an identical fashion to Warren's visions. As Doc and a newly-red Murphy watch the drones begin to spread, Sarge and 10K decide to have sex on the floor of the hangar. Warren, meanwhile, is trapped in the drone as it eventually loses power and plunges into a steep dive towards a mountainside.


Main CastEdit

Guest StarringEdit



  • Unnamed Washington DC Military (Confirmed Fate; Zombified)
  • Mr. Sunshine (Killed by Murphy)

Memorable QuotesEdit

  • "There's been a change of plans." - Dr. Teller
  • "He fell! I swear!" - Murphy, explaining the zombie President's fall down 30 flights of stairs.
  • "I'm the Reset." - Warren, realizing she had been manipulated.

Image GalleryEdit





Episodes of Z Nation
Season 1 "Puppies and Kittens" • "Fracking Zombies" • "Philly Feast" • "Full Metal Zombie" • "Home Sweet Zombie" • "Resurrection Z" • "Welcome to FU-Bar" • "Zunami" • "Die Zombie Die ... Again" • "Going Nuclear" • "Sisters of Mercy" • "Murphy's Law" • "Doctor of the Dead"
Season 2 "The Murphy" • "White Light" • "Zombie Road" • "Batch 47" • "Zombaby!" • "Zombie Baby Daddy" • "Down the Mississippi" • "The Collector" • "RoZwell" • "We Were Nowhere Near the Grand Canyon" • "Corporate Retreat" • "Party With the Zeros" • "Adiós, Muchachos" • "Day One" • "All Good Things Must Come to an End"
Season 3 "No Mercy" • "A New Mission" • "Murphy's Miracle" • "Escorpion and the Red Hand" • "Little Red and the WolfZ" • "Doc Flew Over the Cuckoo's Nest" • "Welcome to Murphytown" • "Election Day" • "Heart of Darkness" • "They Grow Up So Quickly" • "Doc's Angels" • "The Siege of Murphytown" • "Duel" • "Everybody Dies in the End"
Season 4 "Warren's Dream" • "Escape from Zona" • "The Vanishing" • "Keep Moving" • "Fear of the Unknown" • "Back from the Undead" • "A Nice Day for a Warren's Wedding" • "Crisis of Faith" • "We Interrupt This Program" • "Frenemies" • "Return to Mercy Labs"• "Mt. Weather"• "The Black Rainbow"
Season 5 "Welcome to the Newpocalypse" • "A New Life" • "Escape from Altura" • "Pacifica" • "Killing All The Books" • "Limbo" • "Doc's Stoned History" • "Heartland" • "Water Keepers" • "State of Mine" • "Hackerville" • "At All Cost" • "The End of Everything"
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