In 1943, a medical student seeks to use a soldier's case for her psychiatry dissertation; her brother tries to prevent the man's court martial.
In the hospital, Anni gets a high-profile roommate; Dr. Sauerbruch welcomes forced recruit Dr. Jung, who shares shocking news he heard on the forbidden BBC.
Anni and Artur secretly treat Karin; a colleague begs Sauerbruch to rescue his sick son-in-law from jail; Martin tells Otto why he reports to the police.
Margot and Jung catch Miss Fritsch and Kolbe red-handed; Anni and Artur suffer a setback; Sauerbruch goes to Switzerland, which leaves Dohnanyi vulnerable.
Nurse Christel presses Otto for an engagement; Artur makes arrangements for Karin behind Anni's back; an attempted coup has consequences for Sauerbruch.
As German defeat becomes inevitable, the Charité staff struggles to treat patients and awaits the Russians' arrival.