The first episode captures the Channel's rush hour: two weeks in summer when freight lorries share the ferries with 250,000 holidaymakers.
This episode has unprecedented behind-the-scenes access to the Channel Tunnel, meeting senior engineers responsible for keeping it running and truckers trying to avoid 20-mile traffic jams
During the first summer since the camp known as the Jungle in Calais was demolished, ferry captain Mark and his crew guard their ship from migrants. Meanwhile, the programme also meets Stuart, a businessman from Surrey who runs a private high-security truck stop in Calais, where drivers can have their vehicles checked for migrants. Last in the series