Sarah is celebrating the 18th birthday of her childhood friend Cédric; during the evening, they go for a drive; disaster soon strikes when their vehicle hits a rail and ends up in a ravine.

Sarah is still critical, but Cédric has come round; he's suffered multiple fractures and has no memory of the accident or the evening; the police investigation gets underway and the friends and family of both youngsters are questioned.

When Sarah comes round, Donald learns that his son Cédric was driving; he's ready to do anything to protect him, even if this means sacrificing his friendship with Luc; Judith makes a shocking discovery after calling the number Sarah had given her.

Sarah's state of health is still serious; Cédric is angry with his father for seeking to control everything in his life; Annie continues with the formalities for assisted fertilization.

Sarah's state of health improves and she can begin physiotherapy; she gradually adapts to the dietary restrictions imposed on her due to the fragility of her digestive system; Donald continues his campaign to protect his son.

Sarah meets her new doctor, who has a very different theory about her diet; Cédric enthusiastically resumes his physiotherapy; Gégé meets the man whose car he damaged during the evening.