As the pieces of a grim puzzle finally click into place, Gerd and Aida race to prevent history from repeating itself. Hannah makes a special request.

Jasmin realizes she's not alone. Gerd follows a hunch about Hannah while Matthias forges ahead with a plan to bring her home. Aida pursues a lead.

Gruesome new evidence from the forest surrounding the military site changes the scope of the investigation. Jasmin fights to regain her independence.

A search yields disturbing discoveries while Gerd begins to realize that the full truth of Lena Beck's disappearance is darker than anyone imagined.

Gerd meets the mysterious patient. Hannah moves to a new home. Aida's investigation of the accident site leads to a breakthrough.

After a woman is hit by a car and hospitalized, authorities try to make sense of puzzling information from the young girl who was with her.