Latest figures show passenger complaints about rail travel are on the rise. Maintenance of tracks and key infrastructure is behind schedule leading to delays and cancellations. The programme assesses performance of the network and speaks to people affected when it goes wrong.

Also, an investigation into clinics offering vitamin infusions. Can a shot of vitamins really boost your immune system and improve your health? Many in the medical profession are critical of this latest fad. An undercover investigation reveals health claims being made against guidelines from regulators.