Things turn sour at Privilege House, Jacob Two-Two's private school, when the headmaster, Mr. Goodbody, is replaced by the despicable I.M. Greedyguts. Now everything is unbearable, from geography class to the ghastly lunches made by Perfectly Loathsome Leo Louse. Worse yet, nobody's parents believe how bad it really is. Fortunately, Jacob has a new friend he can turn to for help: X. Barnaby Dinglebat, Master Spy.