Beluga Caviar - whether you like the taste or not - it's the world's most expensive fish egg! But what about the fish it comes from? Take a fascinating journey as three world class fishermen go on a 5,000 mile expedition in search of the largest Sturgeon of all - the prized Beluga Sturgeon. Watch them haul in a new world record sized fish - and priceless or not, every beluga is returned to the sea
