Inspired by the true-life unexplained fate of the exploration vessels Erebus and Terror.
Episode One: Autumn, 1846. Over a year into seeking a passage around the north of Canada through icy Arctic seas, Sir John Franklin reckons his two ships are just weeks from success. But his dour deputy Francis Crozier fears otherwise, and a couple of deaths have started to spook the crewmen.
Episode Two: Spring 1847. Having weathered the winter, the crews search for signs of the ice relenting. Lt Gore’s group, leaving messages on a barren but known landmass, have a violent encounter.
The Terror begins Wednesday 3rd March at 9pm on BBC Two.