Overview
- The filming, which began Wednesday, is taking place in Dortmund and is scheduled to run through July 30 with further shoots planned in Hagen and Recklinghausen.
- The six-part series is produced by Dortmunder company Sally Forth Cinema for WDR/ARD and is directed by Marvin Litwak with editorial responsibility at WDR held by Pia Witte and Matthias Körnich.
- The story follows Onkel Ruben, a small-time criminal who claims to be a whistleblower, as his return draws a multi‑generational mining family into a mystery tied to a disused underground route.
- The principal cast includes Johannes Kienast as Onkel Ruben and Purnima Grätz as 15-year-old Mia, with Lucas Gregorowicz, Leonard Lansink, Josefine Preuß, Axel Stein and Minh-Khai Phan Thi among the ensemble.
- WDR says the series is expected on the ARD‑Mediathek by the end of 2026 but has not announced a firm premiere date and the local production highlights renewed film activity in the Ruhr region.