friends ski a dangerous run known as the deed swede with a cam ma attached to his helmeting with christopher charlson is the last to ski down. >> i started skis down and it was one of the best runs of my life. then all of the sudden i was caught off balance and i started to tumble down the mountainside. >> now, christopher fights to keep his head above the snow but how do you stay on top of an avalanche. a, ski to the left or right and get out of the path, b, stop and curl up in a ball to protect your head and organs or c, move faster and attempt to outrun the flow. >> think of avalanche as water. pit's going to flow the same way, just like the current in a river. it's going to pick up and grab stuff. curling up in a ball is not necessarily is best thing to do. >> according to experts, choosing option b is a faster way to get buried. can you outrun it? >> there are very few people on this planet that can ski or snowboard faster than an avalanche. within 5 seconds it can reach speeds of 80 miles an hour. i can reach a max speed of 200 miles an hour depending on the length of run and how big the avalan