A sequel to the fascinating series THE UNDERGROUND, THE TUBE: GOING UNDERGROUND gives us access to the secret world behind the platforms of London's life­blood.

The Tube is full – to bursting. It now carries almost five million passengers a day, so just keeping the Underground moving is a daily battle for its 20,000 staff. From train drivers to the managing director to the ever-busy emergency response team, this is their story.

Filmed over a year of change, this new series (a follow up to 6-part program, THE UNDERGROUND) goes behind the scenes again as the Tube tries to transform itself to cope with record demand. But for its long-suffering workers, who deal with commuters at their best and worst every day, keeping the Underground moving is more than a job.

Over eight episodes we are shown what happens on the tube as staff deal with rush hour, lost property, items on the track, ill passengers, ticket office closures, overcrowding, drunken commuters, delays, maintenance and upgrade work, violence, fare dodgers, tunnel digging and the delivery of new rolling stock.

• Behind the scenes: unique access to the london underground as it undergoes the biggest overhaul in its history, focusing on key members of staff and some of the problems they face.
• A hidden world: viewers get a glimpse behind the hoardings, revealing the massive engineering works at bond street, and a trip inside the command centres, on board with drivers, staff dealing with customers, drunken and violent passengers, as well as the fun stuff that happens on the job.
• Journey companions: these other british transport dvd collections have been evergreen sellers and create a hub of documentaries for trainspotters and lovers of london: the underground (mma5837), secrets of the underground (mma5979), overground (mma5862), overground 2 (mma5951) and the route masters (mma5898)