Dr. Harper dies, leaving the only sample of his rocket fuel behind and KAOS finds it first. Max and 99 have to pose as a valet and maid at the Bulmanian Embassy to recover the stolen fuel. When 99's mother can't babysit, the Chief and Larabee are forced to take care of the twins so the Smarts can go to work at the embassy. Meanwhile, Max must get into the wine cellar to find the fuel, but the only key is around the neck of the ambassador.