蜜芽传媒

The Eurotunnel teams at both ends of the tunnel are on a mission to keep everything on track: getting dog owners home after Crufts, keeping trucks moving despite strikes at French customs and making sure the trains keep circulating, no matter what, on the world鈥檚 busiest and biggest train set.

We see inside Eurotunnel鈥檚 mission control centre, a lair any Bond villain would be proud of. And we meet the appropriately named Tash Speed, one of the company鈥檚 newest train drivers, who has already earned the nickname Two Stop Tash for her daily habit of stopping the train just a little too soon.

Meanwhile, fan refurbishments, which happen once every seven years, are under way at both ends of the tunnel. Without airflow through the service tunnel, no trains would run. We find out why high-pressure air has to keep pumping and how the giant fans, at Sangatte in France and Samphire Hoe in England, get overhauled. We also discover why, on the English side, the workers need a good head for heights.