When Bea goes on several dates and Milo gets a date, Oscar feels he is the only one without a girl so and pretends to have a girlfriend named Doris Flores Gorgeous, but he struggles to keep it a secret from Milo and Bea. He tells Milo and Bea that Doris lives in Fish Niagara Falls so the friends try to "cheer up" Oscar by taking him there. When they get there, there actually is Doris who turned out to be Clamantha.

When Jocktopus's birthday comes up, he warns every student in freshwater high that if they don't bring a gift for him, they will get "pounded" by him. When shopping for said gift Oscar suggests getting him money, which results in Oscar himself being given as a gift by his friends who don't want to be pounded. Bea and Milo try to get him back.

Bea decides to take a job at Fish Flakes but soon misses her old carefree life, but no one will let her quit. Meanwhile, Milo and Oscar get sent to daycare after being mistaken of being Bea's babies. Oscar dislikes the babies, but Milo wears a diaper and stays nearby.

Milo and Oscar search for new roommates after they fight over Milo's messy habits.

Milo, Oscar and Bea travel to Hamsterwood where Bea can have her own TV show. However, there is something fishy going on in there, and it turns out the hamsters are planning to eat Bea!

When Albert Glass becomes sick with the dropsy and is given plenty of attention, Milo decides to fake being sick in order to get some for himself.

Milo does not have any money, unlike Oscar and Bea. They tell him to work but he is lazy and stubborn so he loans money from Randy Pincherson and then Randy treats him he is going to pinch Milo because he used up all the loan. Oscar and Bea give their money to Randy and become very angry with Milo, abandoning him as a friend. Milo decides to work but at the job, he thinks it is very hard just to put the cash into the register. He has the money for the tickets to a concert and the money he owes to Oscar and Bea.

When Principal Stickler says that the boys would build a float and the girls will build another, It becomes a fight because Milo did not come up with a plan and plans one of the boys to spy on them. When the boys and the girls show tier floats, it collapses and becomes a Principal Stickler Float.

Milo sees a horror movie and thinks fish brain parasits are infecting everyone.

When Pamela Hamster visits Milo in Freshwater High, Oscar and Bea are in trouble.

Milo comes up with a great idea: fridge hats. But when Randy Pincherson mysteriously starts selling fridge hats and claiming he came up with the idea, Milo and the others must figure out how Randy knew the idea and how to expose him.

Randy Pincherson steals Bea's diary and blackmails her to go on a date with him. In order to get her diary back, she goes on a date with Randy. Milo and Oscar steal Randy's diary.

Milo and Oscar dress as the school's mascot, but when the fame-happy Milo exposes them, not only does he embaress his shy brother, but players from a rival school kidnap Oscar to destroy Freshwater High's moral for the championship.