Halloween comes to Freshwater, and the gang is eager to get a lot of candy. Unfortunately, Jocktopus is beating trick-or-treaters up and stealing their candy. To get their sweets and not get beaten up by Jocktopus, they journey outside the tanks to trick-or-treat.
When Bea has an audition that requires her to ride a scorpion, she lies about her riding qualifications and says she is an expert. However, when she actually tries to ride one, she finds it hard to stay on. The second time she tries it, she uses glue to keep her on the scorpion, but when Milo startles it with the sneeze-and-toot, it goes crazy and Bea tries to calm the scorpion down.
When Milo, Oscar, Albert Glass, and Jumbo Shrimp stumble on the thing that makes Steve Jackson so popular—his hair gel, they use it to become cool. They eventually go insane trying to use the last of it to become popular for eternity, however.
Milo stands up to Lonnie, the marching band conductor, after he bans all students from playing music; Lonnie challenges the gang to a battle of the bands because he doesn't care for Milo being a rebel. Source: Disney Channel
After being rejected by the band leader, Milo makes his own band. When multiple students reveal that they weren't being allowed to play music, Milo gives them payback. This cause the school band leader challenges him to the Battle of the Bands, where the losing band is banned from playing music ever again. Guest star: Doug Brochu as Lonnie the Band Leader
Milo and Oscar send a holiday request to Fish Santa when they need help throwing a Christmas party. Guest star: Bobcat Goldthwait as Fish Santa
Jocktopus commits the major crime of forgetting his anniversary with his girlfriend, Veronica. She breaks up with him and the others must split up to confort the broken couple.
Piranhica and Jocktopus break up and begin terrorizing the school individually. Now, it's up to the gang to heal the broken relationship.
When Jocktopus' arms get severed in a football game, Bea volunteers to be the replacement quarterback while his limbs grow back. Coach Salmons rejects her, however, saying she'll get injured, but a strangely familiar person named Hank shows up as a new student the next day. Bea then tries to get Hank to reveal his true identity and, at the same time, she has trouble playing football.
Freshwater High goes on a camping trip, and when Milo tells the story about the Rock Lobster Yeti, the class dismisses it as a legend. However, when the real Yeti Lobster shows up, the panicking students realize the folklore about the Yeti Lobster was true, though Milo was left behind and encountered by the Yeti Lobster. The Yeti Lobster turned out to not be as scary as Milo imagined once he got to know him, though the class still thought the Yeti Lobster attacked Milo.
Randy Pincherson spoils the ending to a movie that the gang wanted to see. To retaliate, they devise a plan to do the same thing to Randy with a film he wants to see.
Milo puts an anonymous love letter he wants Oscar to mail for him into Oscar's locker but fails to tell him what it's about leaving Oscar and Bea to think he has a secret admirer. To make things much worse, Milo tries to fix Oscar up with anything than swims.
Milo's love letter for his "Dream Fish" ends up in the hands of Oscar. Now, he has to find a date for Oscar in order to keep from making him mad.
Clamantha's Sweet 16 is today, and no one remembered. Now the gang must throw a party for her before the end of the day. "Sixteen Clamandles" is a parody of the movie Sixteen Candles, and this episode references 16 Candles (song).
Oscar develops a crush on Angela, the head of Freshwater High's rival debate team. However, Oscar later grows suspicious, believing that Angela is spying on him to win the "Big Pros and Cons of Video Games" debate. Guest star: Felicia Day as Angela
When a thief steals Oscar's prize-winning Science Fair project, Bea and Milo flex their detective skills and scour the Freshwater halls for clues and suspects to crack the case of Oscar's missing creation.
Today's the day of their one month anniversary, and Oscar decides to make it official with Angela by asking her to go steady. However, the boys convince him that when a girl becomes your girlfriend, everything changes, so Milo declares "Guys' Night Out". Guest star: Wallace Shawn as Rat King
Bea and the girls get invited to a super-cool ferret party, but when her parents tell her she's not allowed to go, she sneaks out. As the night goes on, the ferrets turn out to be not as cool as they thought, and when things start to get out of hand, Bea calls her parents to the rescue. After Bea apologizes to her parents for sneaking out and lying, they happily forgive her as they were relive that she was okay and proud of her for calling them for help. However, Bea still gets grounded by her p
Bea breaks her fin and is convinced that her life is over since she can't participate in any of her school activities. Randy Pincherson offers Bea a suitable solution, but it comes with a catch.
Bea and Milo try to help Oscar pick out a tie, but when Milo is banned from the store because of his ice cream-stained shirt, he enlists his friends to teach him how to become sophisticated.
After their water filter breaks, Bea invites Milo and Oscar to move in with her. However, the boys quickly wear out their welcome and rather than offend her best fish friends, Bea resorts to drastic measures to get them out.
After Oscar gives off the wrong impression to Esmargot, the girls become convinced that he is cheating on Angela and set up a sting operation to catch him in the act. However, when their plan backfires, they must find a way to save his relationship before Angela loses it.
After Bea and the girls enter the Little Fish Sunshine pageant in order to meet pop sensation Brandon Bubbler, Milo offers to put his baby pageant experience to good use and coach Bea to victory.
Bea and Oscar plan the cruise of a lifetime, but what starts out as a morning of merrymaking quickly turns into a swashbuckling adventure with Milo at the helm as he and his brigade of buccaneers set out to reclaim their ship from the Geckos and save their vacation.
Milo is convinced that he is a true cowboy when Bo Gregory enlists him and his friends to drive cattle fish over to his Uncle's ranch, but when his enthusiasm seems to do more harm than good and the cattle fish go on a stampede and plunge out of the tanks, Milo must prove his worth and save the day.
After seeing the Joe brothers get into a huge fight, Milo gets nervous that one day, that might happen to him and Oscar, so he creates a holiday dedicated to celebrating their friendship. Meanwhile, Bea gets detention, and Oscar tells Bea about Milo getting out of control. Mr. Baldwin then extends Bea's detention each time.
When Bea's childhood doll resurfaces, Bea realizes how creepy the doll really is and tries to paws it off on Milo and Oscar. To make things even worse, no matter what she does to try and rid herself of the doll, it keeps magically reappearing and haunting her.
When Milo gets a free milkshake, he wants the excitement and the drink to last forever, but Bea and Oscar are forced to intervene after Milo names the milkshake Emily and insists on spending quality time with it.
After Principal Stickler goes missing, Bea takes over as school principal. However, some of her new policies upset Nurse Fishington, who encourages Bea to play by her rules. Fishington is revealed to be a robot that Stickler built so he wouldn't have to do his job. Can Bea save the school before Fishington ruins it forever?[
After Principal Stickler goes missing, Bea takes over as school principal. However, some of her new policies upset Nurse Fishington, who encourages Bea to play by her rules. Fishington is revealed to be a robot that Stickler built so he wouldn't have to do his job. Now Bea has to save the school or Stickler's job will be ruined forever.