Survivors of a cataclysm try to find safety; the Harfoots confront evil; Durin is torn between friendship and duty; Adar considers a new name.
Runtime: 72
Starts: Morfydd Clark, Nazanin Boniadi, Tyroe Muhafidin, Maxim Baldry, Ian Blackburn, Lenny Henry, Benjamin Walker, Cynthia Addai-Robinson, Kip Chapman, Peter Mullan, Alex Tarrant, Robert Aramayo, Anthony Crum, Maxine Cunliffe, Lloyd Owen, Thusitha Jayasundera, Trystan Gravelle, Augustus Prew, Simon Merrells, Charles Edwards, Ismael Cruz Cordova