When Gotham becomes the target of a military force inspired by Batman’s methods, Bruce Wayne realizes that he can no longer protect the city alone. Together with Batwoman, he assembles a team made up of Red Robin, Spoiler, Orphan, and Clayface in order to train a new generation of vigilantes capable of working together. But enemies ranging from the Colony and the Victim Syndicate to the League of Shadows quickly exploit their weaknesses and differences. Between training, internal conflict, and increasingly personal threats, the team must learn to become a true family while deciding how far they are willing to go to defend Gotham.