Due to a gift from Zatanna, Lois and Clark lose their memories of their respective bachelorette/bachelor parties. As they trace their steps, Clark realizes he may have robbed an armored car, and Lois discovers she stole memory from an eccentric casino owner.
Everyone loses their memory after drinking spiked champagne, courtesy of Zatanna, at Clark and Lois' bachelor and bachelorette parties. While hunting for her missing engagement ring with Oliver, Lois is accused of theft by Fortune, the casino owner. Elsewhere, Clark recalls stealing an armored truck.