In this opening episode Dan, Anita, and Robert try commuting Mumbai-style, tackling “super-dense crush load” on the world’s busiest commuter trains. With as many as 14 people packed into a square meter, these trains are more than twice as packed as the most crowded UK trains.

This time Dan, Anita, Robert, and John examine the role the station plays in long-distance travel across India. The country’s rail passengers travel an astonishing 3 million km every day – that’s the distance to the moon and back, 4 times.

This time Dan, Anita, Robert, and John go behind the scenes to reveal the hidden areas of the station unseen by commuters. Robert visits a city-sized repair facility where, every 18 months, train carriages are given their version of an MOT.

In this final episode, Dan, Anita, Robert, and John consider the challenges faced by this station and ask what the future holds. 9 people a day die on Mumbai’s railway lines. Anita tackles the railway’s head of safety on the measures they’re taking to reduce this fatality rate.