Arrow (2012)

S3E4 The Magician

Convinced that Malcolm is responsible for Sara's death, Nyssa sets out to take revenge on him. Oliver realizes he must intervene to prevent her, even as Laurel urges him to seek justice for her sister. Meanwhile, Thea makes her way back to Starling City and tries to adjust to life there—until Nyssa uncovers the shocking truth that she is Malcolm's daughter.