This series follows the intensive six-week course that trainee bus drivers must complete in order to get a job driving London's double-decker buses. It is a competitive environment as there are over 20 applicants for each place on the course and only those who pass the 90-minute examination at the end will get the job. The episodes capture the trainees through all of their training as they attempt to complete complicated manoeuvres and emergency stops while safely navigating a ten-ton bus through the crowded streets of London.