Three men, specifically Derek Holtzer asks a kid named Brian to help them teach survival because they heard that Brian survived almost two months in the wilderness.
Derek thinks it is beautiful but Brian knows Derek doesn't know what he's in for.
Derek goes to get survival gear but Brian doesn't let him keep it, besides the radio.
After Brian explains that they need to make fire and always be on the lookout for food, Derek is struck by lightning and put in a coma. Brian tries to call for help but the radio was struck by lightning too.
Brian checks the map in Derek's briefcase and realizes that there is a trading post about 100 miles down the river. He then builds a raft and heads out.
Brian and Derek reach the trading post just under 63 hours and they are saved. Derek recovers from his coma a week later and