A series of strange accidents plaguing a city located near the mine. Two people were pulled through the funnel, which formed after the collapse of tunnels under the lake. Geologist Nina Thiemann discovers that the mine tunnels are insecure and unstable. A woman with an expert in the field of explosions and a father, a former miner, descend into the ground, hoping that they will prevent catastrophe
| Actor | Role |
|---|---|
 Liane ForestieriNona Thiemann | Nona Thiemann |
 Henning BaumGeorg Wiegand | Georg Wiegand |
 Oliver StritzelJosef Rother | Josef Rother |
 Marco GirnthThomas | Thomas |
 Horst-Günter MarxDr. Schneider | Dr. Schneider |
 Ercan DurmazAli Uzun | Ali Uzun |
 Michael LottDieter Witzel | Dieter Witzel |
 Christian GrashofHorst Thiemann | Horst Thiemann |
 Christian GoebelJochen Kemp | Jochen Kemp |
 Daniel RoesnerAndy | Andy |
| SShalyn CasarMaike | Maike |