What are you supposed to do if you get caught in a car that's going under water? It might seem like an unlikely scenario, but last year, more than 100 people were killed when their cars were caught in a river or flash flood. The water rises incredibly fast and the light grows dim...but what's more alarming is that the first 30-60 seconds are crucial for your survival. Here's how to escape with your life. Let's all hope that we never have to put this knowledge into practice. But if you do, you'll certainly be in a far better position to save your life than before.