Andrew, Kristine, and Chaz embark on another adventure, searching for the hidden pieces of the disc and, hopefully, their parents. This time, they arrive in Peru in 1378 AD, which leads them to a discovery tied to their mission. This journey takes them down dangerous paths but also ones that lead to a reunion they never expected but hoped to have. As they draw closer to discovering the truth, it will rock their world - literally - and the puzzle pieces will start to align and fit into place. However, the danger is far from over, and it may just be their biggest test yet, one in which they're not yet prepared for but one that will determine the fate of the world.