Brian Shaw is an American retired professional strongman who is widely regarded as one of the greatest strength athletes of all time. He won the 2011, 2013, 2015, and 2016 World's Strongest Man, making him one of only five men to win the World's Strongest Man four times or more.
The story involves the members of a fossil-hunting expedition down a dark tributary of the mist-shrouded Amazon, where they enter the domain of a prehistoric, amphibious creature.