Christmas Eve, 1892, and the falling snow is the stuff of fairytales. When the fairytale becomes a nightmare and a chilling menace threatens Earth, an unorthodox young governess, Clara, calls on the Doctor for help. But the Doctor is in mourning, reclusive and determined not to engage in the problems of the universe. As old friends return, will the Doctor really abandon humankind, or will he fight to save the world and Christmas from the icy clutches of this mysterious menace?

Title from disc surface. Originally broadcast in 2012. Aired during the seventh season of Doctor Who. Special features: Clara's white Christmas ; behind the scenes of "The snowmen" ; Vastra investigates: prequel to "The snowmen" ; The great detective: prequel to "The snowmen".