A few people live outside normal boundaries. Perhaps they do life-saving jobs or live undercover as spies. Maybe they survive deadly situations against all the odds. Or perhaps they seek out thrills that bring them face-to-face with death. Mission Impossible introduces some of these remarkable individuals. Meet people who take huge risks to save lives. Rescue Skills features highlight the training, gear, and tactics that make the difference between life and death. Learn how firefighters pull people from burning buildings and how dogs can sniff out people buried in earthquakes.