Tunnel C6
- Episode aired Sep 20, 2020
- 45m
A piece of mysterious white wall is found deep underground, causing an accident at the mining site of the world's largest final depository for nuclear waste.A piece of mysterious white wall is found deep underground, causing an accident at the mining site of the world's largest final depository for nuclear waste.A piece of mysterious white wall is found deep underground, causing an accident at the mining site of the world's largest final depository for nuclear waste.