the truck with the dash cam driven by 57-year-old mark coblerman. you see him jump out and race over to that truck. >> the driver fell asleep? >> we don't know but it looks that way. the truck didn't slow down at all before he crashed. other cars came up to race over to help mark get the driver out. moments later, you see mark come running back to his cab, he needs tools to try to bust the windshield of his truck to get the driver out. this video shared on our facebook page. mark's sister tells us that the driver of the overturned truck was okay. >> wow. >>> this dash cam from alberta, canada. keep your eye up ahead on the red car. >> boom! >> ow! >> although the wheel goes flying, i don't believe that's the wheel of the car. i think it was just something in theed road. you guys tell me if you see something different. >> yeah, it was a wheel. that wheel came from somebody else and the red car hits it. >> i think so, too. as you watch the video, the red car does make its way over to the right-hand side of the road. it doesn't look like it's riding, t