Marlin is causing the rain because he is upset at what Gary is doing. SpongeBob takes his adventure there and finds this cave to be the home of Marlin the wizard. SpongeBob looks at the machinery and discovers the area of perfect weather is a local sea cave. He also boasts of building a machine that will control the weather and tells SpongeBob of rumours that the current rain is being created by Marlin the wizard.
He talks to a weatherman named Gary who is stressed because he is sure his machinery is broken after displaying an area nearby that had perfect weather. SpongeBob gets the tools and, now looking official, gets inside the station. While he is gone, SpongeBob gets Jojo's drink. SpongeBob walks inside and informs the owner, who is a very strong fish, of the situation outside. Mermaid Man is in pain on the ground after having had a cola drinking contest with Patrick and SpongeBob and Barnacle Boy are not strong enough to lift him into the invisible boat mobile. SpongeBob goes to a nearby restaurant and finds Mermaid Man and Barnacle Boy in the parking lot. SpongeBob meets a repairman named Jojo behind the building who is willing to trade some of his tools for a Kelpsi soda.
SpongeBob is told by the secretary at the weather station that unless he has business within that he can not walk around the station since the tours are closed. Stuck at the bus station, SpongeBob gets information from the Information Desk and is told that there is a weather station down the street w.s.e.a t.v Outside the bus station, SpongeBob runs across a man who looks vaguely familiar, but the man denies ever having met SpongeBob. SpongeBob and Patrick end up in Rock Bottom, a town previously seen in an episode of SpongeBob SquarePants, due to heavy rain. The two set off for Neptune's Paradise but what they didn't expect was. To calm him, SpongeBob gets a parasol from a tourist from the English Channel.
Returning to the bus stop, where Patrick has been waiting, SpongeBob meets the irritable bus driver who says he will not leave Bikini Bottom because there is a cloud in the sky and he fears rain on the trip.
SpongeBob searches Goo Lagoon and discovers that the Dutchman's Treasure is actually a chest full of bus tokens. After cleaning the cashier's car, SpongeBob gets the chips and completes his plan. SpongeBob then travels to Barg N' Mart where Mr Krabs is moonlighting as a salesman and has sold his own clothes. SpongeBob's grandmother, believing him to be Patrick, tells SpongeBob that she is making a pie but has no Sea Urchin Chips to put in it. SpongeBob goes to his grandmother's house to get a homemade pie that will distract Larry long enough for SpongeBob to grab the shovel and pail. Once there, he finds that Larry the Lifeguard has a shovel and pail but will not let SpongeBob use them. SpongeBob then returns to the town and hears a rumour that the Flying Dutchman hid a buried treasure at the local beach, Goo Lagoon. But first, SpongeBob must finish his shift at the Krusty Krab where an angry customer, later named the Scary Familiar Man, demands his order of a Krabby Patty be fulfilled. SpongeBob and Patrick have to get a bus to Neptune's Paradise which requires SpongeBob to search the town for bus tokens.
As a prize, he receives two tickets to Neptune's Paradise, a local theme park which Mr Krabs had won tickets free in the mail. SpongeBob wins 'Employee of the Month' award again, making him 'Employee of the Year'.