The end is near...isn't it? How likely are we to witness the world's annihilation from the effects of an exploding star, or intelligent robots, or the eruption of a "super volcano," or an asteroid hit, or nuclear war, or plague, or climate change? Each of these doomsday scenarios is provocatively explored in this speculative ABC News documentary, which includes fascinating interviews with scientists and eye-popping visual effects. 85 min. Standard; Soundtrack: English Dolby Digital stereo.