at just 20 years old, floridian shane missler taking home a cool $281 million.the dream of winning the big prize, right? across the country in the rocky mountains we'll meet people on an actual treasure hunt. risking their lives and braving potential bear attacks to find their big prize. how far would you go? here's abc's clayton sandell. >> reporter: somewhere in the vast rocky mountain west, near a stream in a forest, or at the edge of a meadow, people are hunting. >> wait. he could have stashed it under this end. >> reporter: for a legendary supposedly hidden treasure worth millions to whoever finds it first. >> let's go this way. oh my god! i see bronze! >> reporter: dale nightel and cynthia mechum among perhaps thousands looking for this bronze chest, said to be filled with a bounty of gold and rare artifacts. but only one man says he knows where it is. >> here's a wonderful artifact. this is a lantern. see the wick? >> reporter: forrest fen is an 87-year-old former military pilot turned wealthy antiques dealer. he claims in 2010 he hid the treasure somewhe