ark. for obvious reasons, wood, decay. but robert ballard, who found the "titanic" ship wreck in 1985, believe there's evidence of a massive flood about 7,000 years ago, which is when the bible situates noah's story. and he thinks it's in the black sea region offer t er thturkey. let's take a listen. our journey to investigate noah and his ark, led us to the black sea in turkey, where we heard that tantalizing clues were being uncovered by dr. robert ballard, one of the world's leading underwater archaeologists. we were astonished to learn that he believes the biblical flood could have actually happened. and he says he can find proof. if you were to discover definitively something that could pin science on the noah story, how fantastic would that be? >> it would be pretty cool. and i'm confident we can. we just have to look. >> reporter: now, using advanced robotic technology, he's traveling even further back in time. >> i'm putting a lot of money in the water. and obviously, can't wait to see what it's going to see. we're talking about the floods of our living history, they don'