Paddington Station 24/7 S2 Ep12

A heatwave is hitting the network hard. At busy junction Didcot, the heat has caused a fault in vital signalling equipment, resulting in a points failure and Incident Controller Greg is having to react fast to prevent snarl-ups. At Paddington control, Graeme is getting live updates and it's an anxious wait to see if the issues will be resolved in time for rush hour. Down in Cornwall, engineers are dealing with a historic but urgent issue.