Jim and Mark discuss a Classic Sci-Fi Hammer film "Quatermass 2," starring Brian Donlevy, Vera Day, Charles Lloyd-Pack, Michael Ripper, John Longden and Sid James. In this sequel to "The Quatermass Xperiment, an alien race conspires with top officials in the government to take over the Earth. This atmospheric thriller was based on a successful BBC TV serial like its predecessor and successor. Find out more in this week's episode of "Monster Attack!"