A top-secret computer chip has been stolen from the U.S. Defense Department. The international criminals who expertly and ruthlessly engineered its heist are asking for untold millions of dollars on the Black Market. But the precious booty, hidden inside a toy car, has been temporarily misplaced. Its final destination: a comfortable Chicago suburb. Quietly taking up residence in the tree-lined neighborhood, the four highly trained spies marshal all their diabolical resources and skills to retrieve the device. Their state-of-the-art surveillance and ruthless strategy have foiled Interpol, the FBI, U.S. Defense Agents and the local police. Only one person can stop this high-tech gang of black marketers. Meet eight-year-old Alex Pruitt. When this pesky team of bad guys invade his neighborhood, he's the last and only line of defense. Alex has his own special surveillance tools. He has his own carefully mapped out strategy. He has courage. He has the chicken pox. And he's "home alone"...