Engaged in following two cases at the same time to prove that he is up to the primary, Doc is in direct competition with the new primary and takes several risks.

Agnese is surprised to find Manuel's mother hospitalized, the child she has in foster care with Davide, and with whom things do not seem to go too well. Agnese will have to question everything she thinks she knows, just when Andrea seems to want to be closer to her than ever.

Dealing with the case of a young tennis phenomenon, Andrea is forced to wonder if it is worth stopping being "Doc" to pursue the primary.

In this special episode, while the investigation conducted by Caruso comes to life and the secrets of the pandemic begin to emerge, Andrea faces a difficult choice: to get back the primary he must take tests, but if he fails, he will never be able to be a doctor again.

While Caruso's tests have the increasingly clear intent to put Doc in difficulty, Cecilia also begins to discover the secret of the team.

Andrea is forced to come to terms with Agnese's illness, but unexpected news from America reawaken his hopes. At the hospital, however, the new head physician is challenged by a case that will force someone to make a terrible compromise. Meanwhile, Lorenzo is entrusted with a patient who has arrived from a nursing home and has been prescribed an overdose of medication.

While a small war breaks out between Doc and the surgeon Valenti because of Carolina, Doc must face the case of a boy with very present parents and is forced to question himself as a father.

February 2020. Doc is determined to keep his team together that is falling apart: Giulia will move to Genoa, Lorenzo will perhaps leave medicine, Gabriel is leaving for Ethiopia and even Elisa no longer seems interested in the department.

While Andrea seems intent on leaving everything, refusing to deal with the difficult case of the nurse Giacomo, a new internist, Damiano Cesconi, and a new infectious disease specialist, Cecilia Tedeschi, arrives in the hospital, but above all a new primary, who seems ready to dismantle the department from the inside.

While our doctors are forced to take care of a patient, the rift between Doc and Carolina widens more and more, and Andrea must deal with himself.

While the doctors are busy solving the delicate case of a deafblind boy, Cecilia makes Doc an unexpected offer, triggering the jealousy of Agnese and Giulia.

Andrea is confident that he has finally won over Agnese and, feeling romantic, he suggests that a wedding is organised in the ward for a patient in critical condition. Meanwhile, Gabriel makes an unexpected proposal that upsets the balance within the group of interns.

To treat an imprisoned mother, accused of trying to kill her daughter, Doc must fight against the prejudices of the entire hospital, just as he himself is being targeted by the investigation.

Giulia is forced into a showdown with her cumbersome mother when her partner is hospitalized in the grip of an inexplicable syndrome. Just when Doc seems to be returning to primary, Cecilia discovers something compromising about him.

Doc continues to dig into his memory and, now that he has finally met his "sail," he has a clear lead to follow. He has Giulia at his side who, in addition to Andrea's problems, must also think about her career. Meanwhile, a famous travel blogger is admitted to the ward and entrusted to Federico's care. But this encounter is likely to create more than a few problems.

The therapy sessions with Enrico seem to have side effects on Doc, who sees his ability to take care of patients called into question. Agnese seizes the opportunity to crush his research into the past, while Giulia is convinced that Andrea should not give up, despite his problems: in fact, his brother Fabio is admitted to the ward.

Agnese's words have created a rift with Andrea, who must also come to terms with being away from Giulia, who is in Rome for research. Meanwhile, Teresa must work wonders to find a place for Diana's daughter, admitted despite her mother's doubts. Elisabetta is also admitted to the ward after a few days of illness, maybe an indication of a more serious problem.

Giulia brings Andrea back to the ward for a patient who has asked to be exclusively examined by him and who does not know about his current condition. An error caused by his amnesia puts all the trainees under pressure. Meanwhile, Alba is forced to confront the resentment she feels towards her mother.

The arrival of Elisa's older sister in the hospital, a likeable, charming actress, inexplicably makes the young trainee even more surly and bad-tempered. Andrea continues to delve into the years that amnesia has wiped out, while Agnese cannot mask her jealousy over the growing rapport between Giulia and Andrea.

Lorenzo has issues again with his ex-girlfriend Chiara, who is then hospitalized after overdosing. Marco and his wife feel increasingly threatened by the research that Andrea is carrying out on Satonal, the experimental drug that appears to have caused several deaths. Meanwhile, Gabriel has to explain to his community that he intends to settle in Italy.

When he is one step away from regaining the primary, Doc is forced to a painful confession in front of the whole department.

The news of Doc's memory upsets the ward's balance: Agnese fears that recovering his memory will destabilize Andrea's new life, while Damiano is worried about the effect this might have on Giulia. Doc, on the other hand, is increasingly elated, although it is not easy to wedge the therapy prescribed for him by Enrico between the thousands of commitments as head physician.

Doc finally knows how to track down the woman he is looking for, but he must first find the courage to do so. Meanwhile, Ric faces the case of an undisciplined personal trainer, while Damiano must deal with the hospitalization of a model, his brother Samuele's girlfriend. This case threatens to bring up old family grudges.

The fear of discovering the secret about his past is too strong for Doc. However, this denial of the truth drives him away from the ward, much to the surprise of Giulia, who has to take care of a patient who, just like Andrea, seems to be hiding something. Meanwhile, Enrico must deal with Barbara's assaults, which may be hiding more than just infatuation.

Doc enters a competition with an AI: if he does not want to be replaced by a machine, he must find the correct diagnosis for a patient before the computer. Martina, on the other hand, is given a case that forces her to come to terms with her conscience, while Agnese is confronted with a terrible decision to protect one of Andrea's secrets.