Johnny and Scott bring Sigmund home from the beach and hide him in their clubhouse from Zelda, who invited the sherriff over for dinner. Meanwhile, Sigmund's family gets a visit from their rich Uncle Siggy, who demands to see Sigmund or he'll disinherit the family.

Sigmund falls in love with Fluffy, a dog that belongs to Johnny's girlfriend, Peggy. Sigmund's family schemes to get him back by tricking him into meeting Diana Demon, a sea monster actress who Sigmund has a crush on.

Sigmund's family kidnaps Scott, so Johnny dresses up like Frankenstein to save him.

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Burp and Slurp decide to bring home Sigmund to be Big Daddy's birthday present. Not only do they take Sigmund but the cake and presents that Aunt Zelda had gotten for the sheriffs birthday. and its up to Johnny and Scott to save the Birthdaze

Aunt Zelda brings home her nephew (Leroy) for the weekend. Leroy is determined not to get along with the boys and an attack from Burp and Slurp to a blindfolded Leroy (an initiation to enter the club) didn't help matter. meanwhile Burp and Slurp take Sigmund back to the cave. when Johnny and Scott sneak out to resque sigmun, Leroy follows when he see Sigmund will he tell or keep the boys secret

Sigmund wins a radio singing contest the problem is, not only do they need to hide Sigmund identity from the radio DJ but the Ooze Family needs him to sing with them in the Monster rock festival

When the monster School principal tells the Oozo family that they must send one member of the family to school they choose Sigmund. The trouble is thinking he is nothing but trouble Sigmund has run away.

After breaking Aunt Zelda's favorite salad bowl, Sigmund defies curfew and heads home to pick up 50 clams he's got hidden to buy her a new one.

Big Daddy's strapped for cash, but that doesn't stop Sweet Mama from wanting to redecorate their cave. Luckily, Blurp and Slurp come up with a brilliant idea: trade their furniture with that from Johnny and Scott's house.

When Sweet Mama kicks Big Daddy out of the cave, he moves into the club house with Sigmund.

Sigmund's family evacuates the cave during a storm, while Sigmund moves home to avoid Johnny and Scott's parents.

When Blurp and Slurp find out Sigmund is the grand-prize winner of a contest worth a lot of "clams," they kidnap him while he's out trick-or-treating.

When Uncle Swiggy visits his favorite nephew at Johnny and Scott's clubhouse, he sees Aunt Zelda and falls head-over-tentacles in love with her.

The Oozes' cave becomes a blast from the past when a cave man and his pet dinosaur arrive, forcing Big Daddy, Sweet Mama, Blurp and Slurp to move out.

Movie star Jack Wild is kidnapped by Blurp and Slurp while on vacation. It's up to Johnny, Scott, and Sigmund to rescue him.

Sigmund wins a song contest but must figure out a way to collect his prize in person without causing an uproar.