Alex amasses a bundle by playing the stock market on paper for his economics class, and courts disaster by secretly investing his father's money. Even broker Dan Matthews, who takes Alex's class on a tour of his company is so impressed by the teenager's acumen that he advises clients to buy his choices. Sure of himself and frustrated by his parents' insistence of holding onto their AT&T stock, Alex impersonates his father in a telephone call to Matthews and reopens Steven's account. However, when a typhoon causes the stock of his choice to plummet, Alex must scramble to get out of a gigantic jam.