During a high-risk autologous heart repair, the team faces a pulmonary artery rupture and backup power failure, leaving the patient minutes from death. Staff order transfusion, vascular clamps, auto-reinfusion and extracorporeal circulation as lights fail. After nine hours and eighteen minutes the operation concludes and is hailed as the country's first successful case; Dr. Charles and Mervin are praised and the livestream goes viral. Immediately after, colleagues call to rouse Mervin, shouting "Kid," but he is disoriented and asks, "What 'kid'? Why am I a kid?" His sudden confusion is unresolved, forcing the team into a new emergency.