Santiago finds Cristóbal seriously injured by a former lover, Carmen, and in need of a rare blood type he shares with Matías. But the young man has run off with a girl. Julia chastises Cristóbal, and in return he prompts her to take control of her own life. Meanwhile, twins want surgery so they can each have an individual identity. Also, heartbroken by Cristóbal, anesthesiologist Pilar quits.

Cristóbal escapes from criminals threatening harm unless he operates on a drug lord. Meanwhile, Julia looks for a job to pay her way through school. After Santiago fails to put more romance into his relationship, Julia shares her loneliness with Cristóbal. Matías is arrested for taking drugs at a party. While Santiago is distracted by family problems, Cristóbal schedules the drug lord's surgery.