Susanne Teubner is sentenced lifelong for murdering her husband. At jail Reutlitz she has to learn fast, that the other prisoners are not easy to get along with. The rule is eat or be eaten.
The women of bloc B start a mutiny. The new boss Dr. Kaltenbach tries to talk peaceful to the prisoners, but Adler thinks her methods are far too limply, which makes her act on her own.
Even if she assures to be not guilty, everybody except Susanne suspects Martina to have murdered her own child. Although most prisoners avoid her some try to make her life a living hell.
When the prisoners have to give a urine sample, Susannes test results are positive for drugs but Dr. Kaltenbach cannot believe this particular prisoner to be a dealer.
Mutz is about to get released out of Reutlitz. Everything seems to be set that she can live with her family. But with her last day release it looks completely different.
Jailer Gerhard Zöllner is under pressure when he needs to pay his dealer a great amount of money. Raids of the jail staff make it even harder for him to keep up his double life.
When Friese enters the shower room, Walter is hunched over Zöllners body. Although she does plea not guilty, Friese and other women help to get rid of the body. But the truth lies somewhere else.
Lollo fell in love with Agent Fuchs. To keep him close she makes up a story about Zöllners whereabouts not to know she is closer to the truth than imagined.
After Ilse gets into isolation the prisoners suspect Jeanette to be an informer. While they are following their lead they find out something much more delicate.
It's been a long time since the women have seen other men. But as it comes down to the men inside the prison Dr. Beck is the women's favorite for who some of them even try to fight for.
Martina finds a baby in the garden center. She tries to smuggle it into prison. When she is about to tell Susanne about her discovery the baby disappears.
Mutz' god son is diagnosed to stay paralyzed for the rest of his life. Her daughter thinks that he has also lost his will to live. With her dark past Mutz actually considers about helping him out in granting his wish.
Just in time when Martina is about to be released out of Reutlitz, Zöllners body is found in the nursery. Due to the fact she is working there it makes her number one on the suspect list.
Regine writes the manuscript to her personal autobiography. When the word gets around, some executives fear a bad reputation for the prison. Therefore some people try to prevent the book from releasing at any cost necessary.
Walter flirts heavily with Susanne which leads to Vivian being very jealous. During her attempts, some other secrets of Walter's past come to the surface.
Susannes daughter Nina would like to testify in court, to exonerate her mothers punishment. Her grandmother as her legal guardian is not amused about this and forbids it. Nina sees no way out and runs away.
When a Zöllner lookalike shows up at the prison the women get caught up with their past. While some see the sighting as a pure figment, more and more women seem to see the the former jailer.
So they can always be together Daniel makes Lollo a wedding proposal. When they start to make the preparations at the prison, a mistake from her past comes to light and puts everything in compromise.
