All six episodes, including two that are animated due to their being missing from the BBC archives, of the second Doctor's classic 1967 adventure. Patrick Troughton stars.

In the distant future, Earth faces a new Ice Age. While a dedicated team of scientists battle to keep the glaciers at bay, a startling discovery is made deep within the ice... an alien warrior, frozen for millennia. When the Doctor, Jamie and Victoria arrive they soon discover Earth is under threat from the Ice Warriors – fearsome Martians intent on conquering our planet for themselves.