THE TRAINER of legendary internet super dog Hulk has unveiled his ‘secret weapon’ – ferocious protection pitbull Zion. The 85lb colossus is so ferocious that most of his training has to be conducted with him wearing a muzzle for the safety of the trainers. Zion features in the new season of Barcroft TV’s hit online show Dog Dynasty, which has racked up hundreds of million views across YouTube, Facebook and Snapchat. Dog Dynasty follows the fortunes of the 175lb Hulk and the other DDK9s protection dogs, whose puppies can sell for anywhere up to $25,000. This season also sees Hulk hit Miami, to meet celebrity rapper Swae Lee, wave goodbye to beloved DDK9 original The General, and gives a glimpse into what it’s like to take a bite from the Hulk. Dog Dynasty season 4 is available on Snapchat and Facebook with the longer episodes premiering on Barcroft TV’s Beastly YouTube channel, starting August 2.