Thomas and Twilight Sparkle's Adventures of The Dark Knight

Thomas and Twilight Sparkle's Adventures of The Dark Knight is the second upcoming Thomas & Friends/MLP:FIM/The Dark Knight crossover to be made by Hiatt Grey. And is the sequel to Thomas and Twilight Sparkle's Adventures of Batman Begins.

Plot
A gang of criminals rob a Gotham City mob bank, murdering each other until only the mastermind remains: the Joker, who escapes with the money.

Batman, District Attorney Harvey Dent and Lieutenant Jim Gordon form an alliance to rid Gotham of organized crime. Bruce Wayne believes that, with Dent as Gotham's protector, he can retire from being Batman and lead a normal life with Rachel Dawes – even though she and Dent are dating.

Mob bosses Sal Maroni, Gambol, and the Chechen hold a videoconference with their corrupt accountant, Lau, who has taken their funds for safekeeping and fled to Hong Kong. The Joker interrupts and warns them that Batman has no jurisdiction and is unhindered by the law, offering to kill him in exchange for half of their money. After Gambol puts a bounty on his head, the Joker kills Gambol and takes over his gang. The mob ultimately decides to take the Joker up on his offer.

Batman finds Lau in Hong Kong and brings him back to Gotham to testify, allowing Dent to apprehend the entire mob. The Joker threatens to keep killing people unless Batman reveals his identity, and starts by murdering Police Commissioner Gillian B. Loeb and the judge presiding over the mob trial. The Joker also tries to kill Mayor Anthony Garcia, but Gordon sacrifices himself to stop the assassination. Dent learns that Rachel is the next target.

Bruce decides to reveal his secret identity. Before he can, however, Dent falsely announces that he is Batman. Dent is taken into protective custody, but the Joker appears and attacks the convoy. Batman comes to Dent's rescue and Gordon, who faked his death, apprehends the Joker, securing a promotion to Commissioner. Rachel and Dent are escorted away by detectives on Maroni's payroll; Gordon later learns that they never arrived home. Batman interrogates the Joker, who reveals that they have been trapped in separate locations rigged with explosives. Batman races to save Rachel, while Gordon attempts to rescue Dent. Batman arrives at the building, but realizes that the Joker sent him to Dent's location instead. Both buildings explode, killing Rachel and disfiguring half of Dent's face. The Joker escapes with Lau, whom he later kills along with the Chechen.

Coleman Reese, an accountant at Wayne Enterprises, deduces that Bruce is Batman and tries to go public with the information. Not wanting Reese's revelation to interfere with his plans, the Joker threatens to destroy a hospital unless someone kills Reese within an hour. Gordon orders the evacuation of all the hospitals in Gotham and goes to secure Reese. The Joker gives Dent a gun and convinces him to seek revenge for Rachel's death, then destroys the hospital and escapes with a busload of hostages. Dent goes on a killing spree, deciding the fates of people he holds responsible for Rachel's death by flipping his lucky coin.

After announcing Gotham will be subject to his rule come nightfall, the Joker rigs two evacuating ferries with explosives; one containing civilians and the other containing prisoners. He says that he will blow them both up by midnight, but will let one live if its passengers (who have been supplied the trigger to the other boat's explosives) blow up the other. Batman finds the Joker by using a sonar device that spies on the entire city, with the reluctant help of Lucius Fox. Both the civilians and the prisoners refuse to kill each other, while Batman apprehends the Joker after a brief fight. Before the police arrive to take the Joker into custody, he gloats that Gotham's citizens will lose hope once Dent's rampage becomes public knowledge.

Gordon and Batman arrive at the building where Rachel perished. Dent shoots Batman, spares himself, and threatens to kill Gordon's son, claiming that Gordon's negligence is responsible for Rachel's death. Before he can flip for the boy, Batman, who was wearing body armor, tackles Dent off the building to his death. Batman persuades Gordon to hold him responsible for the killing spree to preserve Dent's heroic image. As the police launch a manhunt for Batman, Gordon destroys the Bat-signal, Fox watches as the sonar device self-destructs, and Alfred Pennyworth burns a letter from Rachel saying she planned to marry Dent.

Trivia

 * Knockout, Puffer, Dolphy, Rachel, Mighty Joe, Jenny, Pete, Kevin, Blythe Baxter, Zoe Trent, Pepper Clark, Penny Ling, Vinnie Terrio, Sunil Nevla, Minka Mark, and Russell Ferguson guest star in this film.
 * Trixie will work for Joker in this film.
 * The storyline concludes in Thomas and Twilight Sparkle's Adventures of The Dark Knight Rises.