When the driver of a noisy truck tells SpongeBob to expect a delivery of Princess Napkins the next day, Sponge Bob misunderstands and soon all of Bikini Bottom is gathered to meet the princess.
Hannah is convinced that Molly was dog-napped, but her parents think Molly escaped through an open gate. It is up to Club CSI to examine the evidence, reveal the truth, and most importantly, find Molly!.
Club CSI members Ben, Corey, and Hannah combine what they have learned in their forensic science class with investigative skills to find out who stole the money from the class trip fund.
SpongeBob follows Mr. Krabs's order to decorate the Krusty Krab; but when he puts too many lights up, the power goes off, threatening Mr. Krabs's business.