Ken and his EngiNerds crew return in a nutty and nerdy adventure that´s the perfect follow-up to EngiNerds. When last we met, the EngiNerds were battling a horde of ravenous robots; however in this latest caper, they´re on the hunt for just one rogue robot. But who knows what kind of mayhem one mechanical creature can cause? And why is Ken the only EngiNerd who´s worried about the runaway robot? The rest of the crew seems to be missing in action and Ken fears it´s because of Mikaela Harrington. She´s the new girl in town who´s UFO and alien-obsessed and wants to join the EngiNerds. But as far as Ken is concerned, the EngiNerds are Y-chromosome only, no X´s allowed! Will Ken allow a rogue robot and a know-it-all, genius girl to wreak havoc on the entire universe? He just might not have a choice!