Brother Vanished into Space — Episode 20

Timothy, the adopted Snyder son, was loved by his three sisters. Everything changes when biological son Matthew returns. Deceived by Matthew, the sisters cast Timothy out. Still, he volunteers for the secret 'Project Hail Mary' to save humanity as a gesture of gratitude. After his departure, the family discovers Matthew's true nature and Timothy's sacrifice. Thirty years later, Timothy is a hero on planet Artemis. His family lives in deep regret.