Supergirl (2015)

S3E19 The Fanatical

Title: The Zealot Plot: After fleeing the remnants of Coville's cult, Tanya hands Kara and James a journal that may contain vital information to rescue Sam. Meanwhile, someone discovers the true identity of the Guardian and blackmails James, demanding he comply with their demands or face exposure. As he grapples with the implications of being an unmasked black vigilante in America, James faces a moral dilemma that challenges his beliefs and actions.