Do Not Eat Airplane Peanuts

Ben and Erica end up on another mission involving SPYDER. I know what a surprise! But this mission is different than the others; it's just Ben and Erica. Little do they know SPYDER needs Cyrus Hale for some odd reason and something terrible happens to Spy School. Can Erica and Ben thwart SPYDER again? Or will their relationship tensions hold them back from saving their friends?