April 27, 2011, marked the climax of a superstorm that saw a record 358 tornadoes rip through 21 states in 3 days, 7 hours, and 18 minutes. It was the deadliest day of the biggest tornado outbreak in recorded history, which saw 348 people killed, entire neighborhoods erased, and $11 billion in damage. But from the terrible destruction emerged everyday heroes, neighbors, and strangers who rescued each other from hell on earth.