Suffering from insomnia, disturbed loner Travis Bickle takes a job as a New York City cabbie, haunting the streets nightly, growing increasingly detached from reality as he dreams of cleaning up the filthy city.
An idealistic but struggling actor finds his life unexpectedly complicated when he stops a robbery while wearing the costume of Captain Avenger, a superhero character of a film he is hired to promote. He decides to dabble at being a superhero only to find that it is more difficult and dangerous than he ever imagined.
