"Based on the screenplay by Seth Grahame-Smith and Chris McKenna & Erik Sommers with additional material by Jared Stern & John Whittington, based on LEGO construction toys."

Batman may be a crime-fighting vigilante and a heavy-metal rapping machine, but at the end of long night's crime fighting, he comes home to an empty Batcave. He's lonely. Will Batman let orphan Dick Grayson and police commissioner Barbara Gordon join his team? Or is Batman destined to spend the rest of his life alone?