Five Came Back (2017)

S1E7 Islands And Inlets: West Coast Of Scotland And Western Isles

Neil becomes a member of the HMS Vanguard crew, a Trident submarine. Meanwhile, Miranda embarks on an expedition to track down Minke whales. Mark and Neil set out to revive the historic inter-island rocket mail service. At the same time, Nick navigates the stunning Western Isles, relying solely on a 500-year-old guidebook for assistance.