Manhole covers exploding spontaneously into the air like loose cannons? Humans attempting to mimic Spiderman and run up walls? Sound waves shredding phone books? / Discovery Channel explores the scientific explanations and theories behind some of the most unbelievable, scary, funny and jaw-dropping footage of mayhem, destruction, action and stunts ever caught on camera. This interactive 10-part series features several clips that get paused right before their big, dramatic moments. Which of the incredible - but scientifically possible - options presented, is correct? / With astounding footage, amazing science, ambitious stunts and clever questions, "WHAT HAPPENED NEXT? delivers a non-stop succession of facts, each more brilliant than the last! (Source: Discovery Channel) Currently 0/10