Season 1
- 1Episode 121 Mar 2016
- 2Episode 228 Mar 2016
- 3Episode 34 Apr 2016
- 4Episode 411 Apr 2016
- 5Episode 518 Apr 2016
- 6Episode 625 Apr 2016
- 7Episode 72 May 2016
- 8Episode 89 May 2016
The Underground goes behind the scenes of the world oldest, biggest and busiest underground train network, during the biggest overhaul in its 150 year history. Filmed with unique access to all areas of the tube, this series takes us to places we've always wanted to see - behind hoardings to reveal massive new engineering works; inside the command centre to find out what running the world's most complex train set is really like; and into the hidden world of the Underground at night. The series f…