With the "successful" destruction of the war cruiser, Sheldon returns, intent on giving up his inventing. But the discovery of the XJ-10 Blackbird files piques his interest, bringing on a final project with the help of the BadLads. Can the Blackbird live up to its design as successor to XJ-9, or will it be the scourge of all living things? To Sheldon, this android is so much more.