See three World-Record line class Cats battle it out in the fertile waters of the Parana River. When it comes to tackle destroying Cats, the Amazon and its tributaries offer the greatest action on earth. We visit the Xingu River in Brazil and the Parana River in Argentina to discover the techniques required to boat these massive cats, and show "never before seen footage" of a Piriaba Catfish over 100 Lbs. Running Time: 59 mins