When a young detective discovers a dark family secret, he must navigate the treacherous world of Gotham's underworld to uncover the truth behind his lineage and save the city....

Follow young Timmy as he discovers the truth about his mysterious brother, who is rumored to be the infamous Joker. Timmy's life is turned upside down as he navigates the complexities of his brother's hidden identity and the dangers of Gotham City....