Black ThursdaySeries Episode Number: 248
First Broadcast: Thu 28 Feb 2019 - ~9:00pm UTC (United Kingdom)
Running Time: 60 minutes
1902. Deep beneath the Welsh village of Abertysswg, men have worked the black seam for generations. Until the day of the disaster. The day that a blue box from the future materialised inside the mine.... and things would never be the same again.