On the isolated island of Hoy, a world war two anti-aircraft gun must be deconstructed before setting sail to the mainland, but with years of corrosion slowing the team down will they have time to make the ferry or end up being marooned? In London, a team of ice couriers must deliver a one tonne ice sculpture to Manchester on time and intact, while in West Sussex it won't be plain sailing, as a new concept in floating homes travel hundreds of miles to York.