It's been ten years since the Battle of the Black House. The Tournament has grown beyond anyone's wildest dreams - with dozens of teams, hundreds of players, and millions of fans worldwide. Every year more teams are added to this global gunfight, and every year the original eight teams get older and a step slower. Ellie Willmore and Team Blue wonder if each passing Tournament might be their last. What they don't know is that this time, someone plans to make sure of it. A mysterious figure who calls himself the Gardner has his sights set on rigging the Tournament and hand-picking the winners, and he wants Team Blue out. In a competition without rules, Ellie realizes just how far some will go to win. And in what might be their final Tournament appearance, Team Blue find themselves in a fight for their lives.