Family Ties (5/6)

Still suffering from the loss of her child, Susanne manages to calm a prison riot. Alex, who has done some digging into the Oliver Griebnitz story, tries to lure his father out of reserve with a made-up eyewitness story. Finally, Susanne learns a bitter fact from her mother: Karl-Heinz Kröhmer isn't her biological father - Frank Griebnitz is.