The four Tanner kids are a lot to handle. Grace, the seven year-old, has a princess complex, Bobby, the five year-old, can't put his underwear on right, Stephen, the three year-old, has been talking non-stop to anyone and everything since one and a half, and Jason, well, he eats anything he can get his hands on. And now Mom and Dad are about to learn that child number five is on the way.