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Harper Row, a brilliant young electrician and self-taught tech prodigy from Burnside, struggles to protect her younger brother Cullen from their abusive father, Marcus Row, and the growing criminal chaos spreading through Gotham’s modern youth district. When blackouts, missing children, viral radicalisation, Bane’s crime network, Hush’s medical fronts, Cluemaster’s schemes, Punchline’s followers, and the Victim Syndicate begin converging around her life, Harper turns scavenged tech, homemade shock weapons, and Burnside’s electrical infrastructure into the vigilante identity Bluebird. Across three seasons, the series follows Harper’s brutal rise from survivor to street-level hero as she uncovers Mother — a hidden manipulator who has been shaping broken children into weapons for years — and fights to prove that her trauma does not define who she becomes.