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

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

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

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.

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.