Episode 3

In episode three, it's bank holiday weekend and with a heat wave on its way, there are record numbers of vehicles expected on the roads.

As the big getaway begins, traffic officers Howard and Tim are called to a big pile up in heavy traffic. At junction 4 of the M20 a truck has hit a pedestrian bridge forcing it to collapse onto the carriageway. As a result, the M20 has to be closed - adding hours onto holiday makers' travel times - and for Highways England, it's a race against time to get the road re-opened before over a million holiday makers start their return journeys. For the maintenance teams, this means working through the night to get the bridge off the carriageway.