At a corporate event, a man accuses Sierra Vane of being an impostor using a deceased woman's identity. Sierra asserts she is the real Sierra, back from the dead. She reveals evidence that he and his secretary forged her death to steal her work and shares. He sends men to retrieve her evidence, but she outsmarts them. Another man confronts her, claiming to protect her, but she rejects his control, demanding the truth about her past. He finally gives her a key to a vault, revealing her father's last possession. Inside, Sierra discovers her presumed-dead son was signed over to dangerous people, vowing to rescue him and destroy those responsible.