Freddy vs. Jason vs. Ash: The Nightmare Warriors is a six-issue limited series comic book written by Jeff Katz and James Kuhoric, with drawings by Jason Craig. The series was published by Dynamite Entertainment and DC Comics, with imprint by Wildstorm, beginning in August 2009 and concluding in December 2009. The Nightmare Warriors is a sequel to Freddy vs. Jason vs. Ash, which was published in 2007 and was itself a sequel to the 2003 film Freddy vs. Jason. The series is a crossover between the A Nightmare on Elm Street, Friday the 13th, and Evil Dead horror film franchises. The comic is ignoring the events of Jason X (2001) and Ash vs Evil Dead (2015–2018).

The Nightmare Warriors sees Freddy Krueger and Jason Voorhees resurrected by the United States government, who wish to exploit their supernatural powers; however, the government is unable to control them, and the killers attempt to take over the world using the Necronomicon Ex-Mortis. Meanwhile, Ash Williams joins forces with the Nightmare Warriors, a support group for people who have survived encounters with Freddy and/or Jason, which consists of numerous established characters from the A Nightmare on Elm Street and Friday the 13th franchises, to defeat Freddy and Jason for good.

Katz and Kuhoric wrote the sequel as an epic "fanboy story", and modeled the concept after the Crisis events from DC Comics. The titular Nightmare Warriors were designed as a "Justice League"-style superhero team. The writers attempted to take the three separate mythologies and combine them into one coherent continuity.

Plot A group of government agents led by Director Gordon Russell excavate Crystal Lake for the Necronomicon Ex-Mortis, which they plan to use for "Project Black Book". As Russell leaves with the book, the remaining agents go underwater to retrieve the body of Jason Voorhees, who awakens and kills them. Prompted by Freddy Krueger posing as his mother, Jason leaves Crystal Lake in search of Ash Williams. Six months later, in June 2009, Ash is living in Franklin, Michigan with his girlfriend Caroline, believing his days of fighting monsters are behind him. While preparing to host a backyard barbecue, Ash is visited by Doctor Maggie Burroughs, who tries to convince him to join a group started by herself and Doctor Neil Gordon consisting of people who have fought and survived "unnatural evils". Annoyed by his visitor, Ash sends Maggie away before going to the store for supplies for the party, leaving Caroline alone. Elsewhere, Stephanie Kimble and Alice Johnson experience visions of Jason and Freddy, while Jason attacks and kills Caroline. Meanwhile, at the Pentagon, Russell reveals his plan to create an army of demonic soldiers using the Necronomicon.

After discovering Caroline's body, Ash flees the scene as the police arrive, not noticing a man in a hummer spying on him. At his headquarters, Russell uses a combination of modern technology and the Necronomicon to pull an unburnt and seemingly powerless Freddy Krueger out of the Deadites' realm to Earth. Ash boards a train to Baltimore, Maryland to look for Maggie and her group, and Jason follows him by stowing away in the vehicle's boxcar. Stephanie, her father Steven, Alice, and her son Jacob show up at Maggie and Neil's house, where Tina Shepard and Rennie Wickham are already living. When Ash arrives, Maggie gets everyone settled and begins to tell them about her and Neil's goals. They are interrupted by Jason, who comes crashing through the door and kills Steven. As Ash arms himself, the man in the hummer drives through the wall of the house and rams into Jason. Everyone escapes, and their savior introduces himself as Tommy Jarvis, Jason's oldest enemy.

Government agents show up at Maggie and Neil's house and take Jason down with bullets and missiles. Meanwhile, the survivors take refuge at a motel and Maggie suggests they visit her (adoptive?) father, Gordon Russell, to use the Necronomicon to defeat the killers. Unimpressed, Tommy breaks away from the group and goes solo. At the Capitol, Jason is put in a holding cell full of Deadites. He is visited mentally by Freddy, who proposes that they team up to massacre the world. Jason accepts when he hears that his old enemies — including Tommy — will be coming for them. Freddy appoints him the general of his Deadite army, repairs his decomposed body, and brings him back to life as before he was killed by Tommy. Meanwhile, the group (minus Stephanie and Jacob, who remain at the motel) also arrive at the Capitol and are locked up, with the exception of Maggie, Neil, and Rennie, who Russell takes to visit Freddy. Freddy transforms back into his burned, demonic form, and reveals that he has bonded with the Necronomicon and possesses all of its powers. Russell attacks Freddy with his own glove, but Maggie turns the blades back on him and kills him. She reveals her true identity as Freddy's daughter, Kathryn Krueger, and attacks Neil and Rennie. Tina feels the psychic impact of Rennie's death, and uses her telekinesis to break out of her cell. As she, Ash, and Alice escape, Jason and his army of Deadites descend on Washington.

Ash, Tina, and Alice fight and destroy a Freddy-controlled robot to acquire the Necronomicon. Meanwhile, Tommy confronts Jason on the streets of Washington as he and the Deadites cut a swath of destruction across the city. While opening fire on his nemesis, Tommy is attacked by winged Deadites, who take him to Freddy. Back at the motel, Jacob and Stephanie fall asleep, and Freddy possesses the latter. Stephanie/Freddy seduces and attacks Jacob, forcing him to call out to his mother. Alice hears her son's cries and uses her Dream Master powers to transport herself, Ash, and Tina into Jacob's nightmare. Immobilizing Ash during the fight, Freddy flays Stephanie alive and escapes with Jacob. Still in the dreamscape, Tina and Alice put Stephanie's skin back on and she wakes up physically unharmed. At the White House, Tommy and Jacob are held hostage by Freddy, Jason, and Maggie. Disguised as the President, Freddy addresses the nation, describing his new policy "no kid left alive" and the carnage he plans to cause all over the globe. Having seen Freddy's broadcast, Ash and the girls break into a nearby pawn shop for weaponry and head to the White House.

As it literally rains blood in Washington, Ash, Alice, Tina, and Stephanie plan their way into the White House. Upset by Ash and Alice's bickering, the traumatized Stephanie wanders off alone. The group are provided the distraction they need to get in when an army of soldiers arrive to rescue the President. Tanks, helicopters, and fighter jets battle the Deadites, but the soldiers suffer heavy losses and Freddy manifests in the clouds to blast the helicopters out of the sky. Elsewhere, Stephanie passes out and finds herself back in the dream world. She arrives at a church and meets Freddy posing as a priest; he informs her that, as member of the Voorhees family, it is her destiny to become a murderer like Jason. Clad in her own hockey mask, Stephanie leaves the church to fulfill her birthright and kill Jason. Back at the White House, Maggie and Jason break out in a fight, but are interrupted by Ash, who drives a tank in the middle of the room, killing Maggie, much to Freddy's anger. As Ash rescues Neil, Jacob, and Tommy, Alice confronts Freddy face-to-face. She reveals that she has a terminal illness and that her Dream Master abilities are weakened, so she allows Freddy to kill her so she can pass her power over to Jacob. As she dies, she releases the souls of the people Freddy has killed over the years. Furious at his mother's death, Jacob declares he is the Dream Master now, surrounded by the spirits of Amanda Krueger and the Dream Warriors.

Amanda and the other souls successfully destroy the Deadite army, but Freddy quickly severs their connection to Earth by critically wounding Jacob. As Tina tends to Jacob and Ash battles Freddy, Tommy takes it upon himself to deal with Jason. In a closely matched fight, he taunts Jason for never being able to kill him. Stephanie appears and impales her uncle with a machete; this distraction provides Tommy the opportunity to stab Jason's head with a shard of glass. However, Freddy exploits this victory by absorbing Jason's soul to increase his own power. As Neil struggles to read the Necronomicon's passages to banish Krueger, he is joined by the spirit of Nancy Thompson, Freddy's first enemy; together Neil and Nancy recite the words to open the Deadite's dimension. Freddy resists the vortex, until the Necronomicon itself declares him unworthy and strips him of his power. The human Freddy begs for forgiveness, claiming that the demonic power corrupted him. Thankfully, Ash doesn't believe him and mercilessly blasts Freddy into the vortex with his shotgun, citing his own lack of a 'storybook ending'; it is likely, upon Krueger's return to the Deadite dimension, that he dies at the hands of the Deadites. At the same time, Nancy leaves Neil to rejoin the other spirits. Around the same time, Jason's mask is shown (which Tommy split in half with a rock) with his mother's voice telling Jason that he can never die. The next morning, Ash decides to go on vacation in Texas and bids farewell to Tommy, Tina, Neil, Jacob, and Stephanie, appointing Tommy the new captain of the "Nightmare Warriors".

Later, it's shown that in 1964 Springwood, a time-displaced and disoriented Agent Wesley Carter - who had been sucked into the Necronomicon's vortex - finds himself in the Springwood Police Department on the day of Fred Krueger's arrest, and impulsively signs Krueger's search warrant when he finds the file on a desk in front of him, altering history so that the technicality that would have eventually rebirthed Krueger as a monster in that timeline never happens.

Development

Writing Co-writer Jeff Katz had plans for The Nightmare Warriors as soon as the first Freddy vs. Jason vs. Ash moved from film to the comic book medium. He says, "I basically knew most of the larger strokes of what I'd want to do to cap the Vs. "trilogy", so to speak. In many ways, it's very simply been about - "What would I most want to see as a fan?" And as a fan of these franchises, what I appreciate more than anything is a sense of continuity." Katz claims that these horror franchises were always best when they carried characters over from film to film, and that the aim of Nightmare Warriors was "about tying everything together". The subtitle, The Nightmare Warriors, was a homage to A Nightmare on Elm Street 3: Dream Warriors, Katz's favorite entry of that series. Kuhoric feels the title is fitting since Nightmare Warriors is a survivor's story.

"With remakes of Friday and now Nightmare, we are in many ways the stewards of the classic continuity and it's a responsibility we don't take lightly." — Jeff Katz on what the series means to him.