During the summer of 2014 in Crown Point, Indiana, David, Brody, and Toby Ingram go on another visit to Texamilio, where Rockybado, the Robot King of the Island, resides. The three boys take their friends, Adam Levistad, Andrew McCalsky, and John Garfield, on the adventure. When the six boys set foot in Texamilio, they realize that Rockybado's position is being challenged....once again. Not just by Claude and Susan McSmith, but also by some very interesting aliens.