Zack and Deuce find the Flicker, the last remaining solider from the Great Butt War, still hiding in a bum shelter. Zack brings him above ground and tries to show him the war is over. Butts and humans get along now, dude. In fact, Zack does such a good job of convincing him butts are good, that the Flicker ends up teaming with the Great WhiteButt and his minions. Oops. / Silas Sterne makes a traditional butt fighter milkshake. It tastes terrible! But somehow, it makes Deuce a genius. Zack and Eleanor use his brain to have all sorts of fun including Deuce figuring out the Cheekburger special sauce recipe. But soon, words of Deuce's smarts spreads. A shake that makes butts smart? You can bet the Great White Butt wants himself some of that.