The most notorious prisoner, Dab, harasses Bata. But he accidentally slips, injures himself and falls into a coma, and everyone in the prison thinks that Bata fixed him up. Bata accepts the imposed role of a dangerous type in order to survive in a harsh environment. On the other side of the prison walls, Una is frantically trying to return to the path of old glory, but the reins are slipping out of her hands. Inspector Trišić's intuition tells him that Bata is innocent, so he tries to find evidence for it. In prison, after several acts of bravery, the inmates elect Bata as the new boss to mediate all the dirty dealings with the guards. Una rejects Neško's courtship, and Neško finds comfort in Una's biggest rival, Dina, who is making rapid progress.