The Tube (London Underground)

Ticket fraudsters get a hard ride and a graffiti vandal gets an early morning wake up call.

Engineers have an emergency call out in a tunnel, and a brand new station assistant has to face her fears.

Station assistant Jackie is thrown in the deep end, and there's a suicide attempt at Victoria.

Customers are at breaking point at Brixton, and Jason has a surprise visitor.

The heat is on for the Piccadilly line engineers, and there's a bomb scare at Cockfosters.

Trainee driver, Terrance, handles a train for the first time, and 60-year-old Keith does it for the last.