Overview
At first, friendgroup TKKG have no idea that something is amiss when “Jugend forscht” winner Kevin behaves strangely during the presentation of his “Mind Machine” - they blame his nervousness and his unexpected termination of the speech on relationship stress with his girlfriend Nadine. But when Nadine disappears without a trace shortly afterwards, like three other children before her, the amateur detectives know that they have to help the police with their investigation.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 14 | 33 | |
 | 15 | August 5, 2013 (22) | |
| - | - | |
| 13 | 32 | |
 | 38 | 57 | |
 | 46 | 65 | |
 | 37 | 56 | |
 | 35 | 54 | |
 | 32 | 51 | |
 | 49 | 68 |