Ferry captain Mark steers his 35,000-tonne ship across the Channel with drunken passengers onboard. Cross-Channel swimmer Naomi attempts to navigate the maritime motorway in unforgiving conditions.
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.
This installment follows a multi-million pound electricity cable project, and meets fishermen facing pressure from EU quotas and new technology projects as they compete for access to the Channel's riches.
Ferry captain Mark and his crew try to keep desperate migrants off their ship. Meanwhile, can a TV advert aimed at British viewers change perceptions of Calais?
