"Who Killed Sara?" season three opens with "Presumed Dead," challenging the series' core premise by uncovering evidence that Sara Guzman survived the parasailing accident and was a subject in a secret project. Álex discovers this while finding his sister's psychiatrist, Dr. Alanís, murdered, deepening the mystery surrounding Nicandro and the Lazcano family's involvement. For a detailed recap, visit Ready Steady Cut . Who Killed Sara? season 3, episode 1 recap