The hunt is on in Surrey for a suspect thought to have evaded close to £20,000 of fares in one of South Western Railway's biggest ever fraud cases. Revenue Protection officers Michelle and Lucky expose short farers at Vauxhall. And at London Waterloo, Jack and Jack face up to an explosive passenger, while Harry has a run in with a barrier basher.

South Western Railway revenue protection officer Sam is cornered and verbally abused on a train by a man who has no ticket and insists on confronting her throughout his journey. Police step in to stop events spiralling when a man loses control at ticket gates in Kingston after being challenged by Jane, while Harry is threatened by an aggressive tailgater at London Waterloo who won't take no for an answer.