Batman: Bad Blood is a direct-to-video animated film. It was released on February 2, 2016.
Batwoman intercepts a group of criminals in Gotham City that includes Electrocutioner, Tusk, Firefly, Killer Moth, and others. When a fight ensues, Batman arrives. They are confronted by the apparent leader of the criminals, a man called the Heretic, who detonates explosives planted within the facility. Batman flings Batwoman to safety and apparently perishes in the explosion.
Weeks later, a concerned Alfred Pennyworth sends a distress signal to Nightwing. Meanwhile, Damian Wayne watches a news report of Batman's disappearance and sets out to return to Gotham. Batwoman's civilian alter-ego, Katherine Kane, meets with her father Jacob, explaining she feels responsible for Batman's apparent death. In the past, Katherine was traumatized by an incident in which her sister Elizabeth and mother Gabrielle were abducted, held for ransom, and eventually killed by their captors, while she was the sole survivor. After her time in the military, she became a promiscuous drunkard who was saved by Batman from street thugs, which motivated her to never need to be saved again, resulting in her becoming Batwoman.
Batman apparently resurfaces and is quickly noticed by Robin and Katherine. Both of them intercept Batman and quickly deduce that it is Nightwing wearing an old version of the Batsuit. They begin their own investigations into the Heretic, unconvinced that Bruce is truly dead. The Heretic and his henchmen attack Wayne Enterprises, forcing Lucius Fox to open the way into the vault by threatening his son Luke. Though Nightwing and Damian arrive, they are unable to prevent the Heretic from escaping with Wayne technology, and Lucius is injured. Before they leave, the Heretic kills Electrocutioner when the latter is about to kill Robin.
The Heretic returns to his headquarters, where it is revealed that he is working for Talia al Ghul. They have Bruce captured and the Mad Hatter is causing him to hallucinate. The Heretic then breaks into the Batcave and kidnaps Damian. He explains that he is a clone of Damian, created by a genetics program run by Ra's al Ghul and the League of Assassins. They used Damian's DNA to genetically engineer a perfect soldier with accelerated growth and development, but he was the only subject of the program to survive. Due to his feeling of not being a real person, he wishes to have Damian's memories and personality implanted within his own brain, but Talia arrives and kills the Heretic. Nightwing and Batwoman then arrive, having located Damian through a tracker in his costume. They are quickly joined by Luke, clad in an advanced combat exosuit and styling himself as Batwing. The three rescue Bruce and Damian, but Talia and her henchmen escape.
Weeks pass and Bruce seems to have recovered, though he remains adamant that Katherine and Luke not be involved. After Katherine is forced to fight her father after he suddenly attacks her, Dick learns from this that Bruce is still under the effects of the Mad Hatter's mind control, though Damian is unconvinced. Luke realizes that the League of Assassins are planning to brainwash a number of world leaders at a tech summit held by Bruce. As the brainwashing takes place, Nightwing, Robin, Batwoman, Alfred, and Batwing arrive and fight Talia and her henchmen. During the fight, the Mad Hatter is killed, interrupting the mind control. Bruce, still brainwashed, defeats Nightwing. Talia then orders him to kill Nightwing and Damian, but Bruce, through Grayson's pleas, resists the brainwashing. Incensed, Talia escapes in a vessel, only for Onyx, a subordinate of the Heretic, to confront and attack her in revenge for the Heretic's death. The vessel subsequently crashes and explodes, implying their deaths. Bruce is later seen comforting Damian over Talia's supposed death. Alfred remarks to Grayson that despite Talia's madness, she was still Damian's mother.
As the Bat-Signal shines in Gotham City, Batwoman, Nightwing, and Batwing meet Batman and Robin on top of the police station to respond to a crime committed by the Penguin. On a nearby building, Batgirl observes the group and prepares to join the pursuit.
- Jason O'Mara as Bruce Wayne/Batman
- Yvonne Strahovski as Kate Kane/Batwoman
- Stuart Allan as Damian Wayne/Robin
- Sean Maher as Dick Grayson/Nightwing
- Morena Baccarin as Talia al Ghul
- Steve Blum as Black Mask and Firefly
- Gaius Charles as Luke Fox/Batwing
- John DiMaggio as Tusk
- Robin Atkin Downes as Jervis Tetch/Mad Hatter and Electrocutioner
- James Garrett as Alfred Pennyworth
- Ernie Hudson as Lucius Fox
- Christine Lakin as a reporter
- Vanessa Marshall as Renee Montoya
- Richard McGonagle as the president
- Matthew Mercer as Hellhound and Chuckie Sol
- Geoff Pierson as Colonel Jacob Kane
- Jason Spisak as Kuttler/The Calculator and Killer Moth
- Bruce Thomas as Commissioner James Gordon
- Kari Wahlgren as Ms. Bannister and Kori
- Travis Wilhingham as The Heretic
- Robin: I don't trust her.
- Nightwing: Oh, but you did trust Talon?
- Robin: Shut up.
- Chucki Sol is mentioned in a radio report at the beginning of the movie.
- When Bruce is seen on TV arriving at the summit, the name of the television channel is News 52.
- Batwomans first appearance in the film is similar to her reveal in 52, where characters initially think they're dealing with Batman before realizing the truth.
- Lucius Fox's appearance resembles Morgan Freeman, who portrayed him in The Dark Knight Trilogy.
- Dick convinces Batwoman to use rubber bullets.
- As with the previous films, the original costume that Dick Grayson wore as Robin appears. This time around, his original Nightwing costume is shown as well, hanging right beside his Robin one in the Bat Cave.
- The climax happens on board the Watchtower, although this version isn't in outer space.
- At the end of the film Nightwing mentions that he'll be heading to "the tower". What team is Nightwing typically a part of that happens to be based in a tower? The Teen Titans. Also lines up with him dating Starfire in this series of films, along with DC's next planned animated film being a Teen Titans film that takes place after this one.
- Black Mask and Firefly (and, to a lesser extent, Electrocutioner) resemble their Batman: Arkham Origins designs.
- The music resembles that of Batman: The Animated Series a few times.
- The moment in the first scene when Batwoman emerges from the water after getting thrown clear of the exploding building visually resembles a scene in Batman and Robin when she gets Lazarus Pitted, especially due to the orange color scheme.
- One of the guests at the tech summit resembles Cameron Kaiser from Batman: The Animated Series episode "Joker's Wild".
- At the very end, the Penguin is seen running from the cops.
- As the new Bat-family gives chase to the above criminal, a new hero arrives: Barbara Gordon as Batgirl, wearing her New52 leather-jacket-based costume.
- In the comics, Damian was killed by the Heretic, but here Talia kills him before it can happen, indeed, Heretic goes out of his way to ensure no harm comes to Damian.
- Nightwing is once again seen in a flirty phone call with Starfire.
- Blockbuster and Black Mask are seen in very brief fight scenes irrelevant to the plot.
- Lex Luthor and Amanda Waller appear at the tech summit.
- A report on the News 52 channel reveals that there have been strange sightings on Mars. This could be a Foreshadowing to Martian Manhunter's appearance.
- Mad Hatter and Calculator, who are exclusively referred to by their surnames (Tetch and Kuttler, respectively).