so he's definitely unconscious for just a few seconds. and we immediately went into, you know, crisis mode. >> the guys quickly jump into the water and get chase back into the boat. then they call it quits. for chase, a minute in the air turns out to be painful. >> i was hurt. i was hurt very bad. i went to eight chiropractic visits. i had electrotherapy on my lower right back muscles. i still have problems today with my lower back. >> that's the last time chase, chris or any of their friends go kite tubing. >> after that we did the normal sports like wake boarding and knee boarding. >> and we sold it on ebay a week later. here's something you should never, ever try. a young man dashes in front of a speeding train. will he make it? april, 2011. an express commuter train in adelaide, australia, is traveling down the tracks at almost 60 miles per hour. it's passing through the maoson lake station when someone comes running from behind the train