Kitty and Red Forman welcome a new generation of teenagers into their basement when their granddaughter Leia decides to spend her summer in Wisconsin.

Charlie is a young woman who can start fires with her mind. As she grows, so does her power, and malevolent forces begin to hunt her and her family.

They're the first generation of superheroes. But as they pass the torch to their children, tensions are rising — and the old rules no longer apply.

The series is set during Bruce Wayne's early years as the Batman, following his initial period of battling organized crime. Over the course of the season, he hones his skills with the assistance of his butler, Alfred Pennyworth. Bruce is introduced to Alfred's goddaughter, Tatsu Yamashiro. Tatsu is a martial arts swordsmaster hired to act as Bruce's bodyguard, but also recruited to act as a superhero partner to Batman.