Amazon Prime Video subscribers who are DC fans will have a great gift and treat for December 25 as they will get to stream The Flash. This superhero film is based on the popular comic book character Flash and follows Barry Allen as he tries to go back in time to prevent his mother’s murder, which brings unintended consequences to his timeline and strands him in an alternate universe in 2013. Allen then enlists the help of an older Batman, played by Michael Keaton, and the Kryptonian Kara/Supergirl to return to his own timeline and also stop General Zod when he launches a full-scale Kryptonian invasion of Earth.