Batman Begins

Eight-year-old Bruce Wayne falls into a well, where he encounters a swarm of bats. Later, he accompanies his parents to a production of Mefistofele, which features actors dressed as bats. Having developed a fear of bats, he urges his parents to leave the opera. Outside the theater, they are mugged by Joe Chill, who proceeds to kill the parents. Although Chill is later arrested, Bruce blames himself for his parents' murders.
Fourteen years later, Bruce returns to Gotham City from Princeton University, intent on killing Chill, whose prison sentence is being suspended in exchange for testifying against mobster Carmine Falcone. Before he can act, a woman posing as a reporter kills Chill for Falcone. Bruce tells his childhood friend Rachel Dawes about his plan, and she expresses disgust for his disregard for justice. Bruce confronts Falcone, who tells him that he is ignorant of the nature of crime, so Bruce decides to travel the world to understand the criminal mind. He is detained for theft in a Bhutanese prison, where he meets Henri Ducard. Ducard invites Bruce to join an elite vigilante group, the League of Shadows, led by Ra's al Ghul. Bruce is freed and travels to a mountaintop to begin his training with the League. Bruce overcomes his childhood fear of bats in the process. When he is ordered to execute a criminal and learns of Ra's intention to destroy Gotham, he refuses and escapes by lighting the League's temple on fire, killing Ra's in the process. Bruce rescues an unconscious Ducard from the wreckage and leaves him at a village.
After seven years of being abroad, Bruce returns to a Gotham City ruled by Falcone, and plots his war against the city's corrupt system. He seeks the help of Rachel, now an assistant district attorney, and police sergeant Jim Gordon, who consoled him after his parents' murder. After reestablishing his connections to Wayne Enterprises (now run by William Earle) Bruce acquires, with the help of former board member Lucius Fox, a prototype armored car and an experimental armored suit. In his first night, he disrupts a drug shipment, and leaves Falcone tied to a searchlight, forming a makeshift Bat-Signal. He also disrupts an assassination attempt on Rachel, leaving her with evidence against a judge on Falcone's payroll. While investigating the drugs in the shipment, Batman is stunned by Dr. Jonathan Crane, an Arkham Asylum psychiatrist on Falcone's payroll, who sprays him with a powerful hallucinogen. Bruce's butler Alfred Pennyworth rescues him, using an anti-toxin developed by Fox to save him. Crane later poisons Rachel after showing her that the toxin, which is lethal in vapor form, is being piped into the city water supply. Batman saves her and attacks Crane with his own poison. When the police arrive at Arkham to arrest Crane, Batman escapes with Rachel in the Batmobile. After administering the antidote to her in the Batcave, he gives her two vials of it for Gordon – one for inoculating himself and the other for mass-production.
Later, in Wayne Manor, Bruce is confronted at his birthday celebration by a group of League of Shadows ninjas led by Ducard, who reveals himself to be the real Ra's al Ghul, and that the man killed earlier was a decoy. Ra's, who had been conspiring with Crane the entire time, plans to destroy Gotham by distributing the toxin via the city's water supply, and vaporizing it with a microwave-emitter stolen from Wayne Enterprises. Bruce dismisses his guests by insulting them while pretending to be drunk, and fights briefly with Ra's while the League set fire to the Manor. At the last minute, Bruce escapes the inferno with Alfred's help. Batman arrives at the Narrows section of Gotham to aid the police in battling psychotic criminals, including Crane, now calling himself "Scarecrow", whom the League set free. Rachel is briefly confronted by Crane, but quickly wards him off with a taser before being chased by more inmates. After saving her, Batman reveals his identity to her, and leaves Gordon in control of the Batmobile to stop the elevated train used to transport the weapon to the city's central water-hub. Batman battles Ra's aboard the train, then escapes just as Gordon topples the elevated line using the Batmobile's autocannons, leaving Ra's to crash to the ground and perish in the explosion.
Following the battle, Batman becomes a public hero. Bruce gains control of Wayne Enterprises and installs Fox as the new CEO, firing Earle. However, he is unable to hold onto Rachel, who cannot reconcile her love for Bruce with his dual life as Batman. Newly-promoted Lieutenant Gordon unveils a Bat-Signal for Batman. Gordon mentions that they will have their hands full finding all of the psychopaths released from Arkham by Ra's, and in particular notes a criminal who also has "a taste for the theatrical" and leaves Joker playing cards at all of his crime scenes. Batman promises to investigate it, and disappears into the night.