S1.E1 ∙ The Monster Who Came to Dinner

Johnny and Scott bring Sigmund home to live in their clubhouse, but the sea monster is nearly discovered by Zelda and the Sheriff when Sigmund's monstrous brothers come looking for him.

S1.E2 ∙ Puppy Love

Sigmund falls in love with a canine named Fluffy. Meanwhile Zelda decides to clean the clubhouse and Slurp dresses up like a female movie star to try to lure Sigmund home.

S1.E3 ∙ Frankenstein Drops In

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

S1.E4 ∙ Is There a Doctor in the Cave?

Johnny gets captured when he attempts to find medicine for the sick Sigmund. Meanwhile the Wolfman makes a surprise appearance at the Ooze cave.

S1.E5 ∙ Happy Birthdaze

Sigmund decides to surprise the boys by cleaning the house, but his brothers crash in.

S1.E6 ∙ The Nasty Nephew

Zelda's obnoxious nephew Leroy stays the weekend.

S1.E7 ∙ Monster Rock Festival

Sigmund refuses to sing with his sea monster family in a monster rock concert because he has entered a radio contest looking for new singers!

S1.E8 ∙ Ghoul School Days

When Sigmund's brothers find an Ooze brother must attend Ghoul school they try to trick Sigmund into going.

S1.E9 ∙ The Curfew Shall Ring Tonight

Sigmund accidentally breaks Aunt Zelda's bowl and decides to get money from his family's cave to replace it, but he is caught after curfew by the sea monster sheriff.

S1.E10 ∙ Sweet Mama Redecorates

Sigmund's mother Sweet Mama decides to redecorate the sea monster cave.

S1.E11 ∙ Make Room for Big Daddy

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

S1.E12 ∙ It's Your Move

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

S1.E13 ∙ Trick or Treat

Sigmund discovers the joys of trick or treating. Meanwhile the Ooze family learns that Sigmund has won a TV contest.

S1.E14 ∙ Uncle Siggy Swings

Sigmund's Uncle Siggy comes for a visit and falls for Zelda.

S1.E15 ∙ The Dinosaur Show

A caveman and his pet dinosaur move into the Ooze's cave and force them out.

S1.E16 ∙ The Wild Weekend

Jack Wild spends the weekend with the boys. Meanwhile, Prince runs away from home.

S1.E17 ∙ Boy for a Day

Sigmund gets amnesia and thinks he's a human boy.

S2.E1 ∙ A Genie for Sigmund

Sigmund finds a genie in a seashell.

S2.E2 ∙ Paul Revere Rides Again

Sheldon zaps Paul Revere into the clubhouse and then can't zap him home. Meanwhile, the Ooze family devises a scheme to swipe Sigmund's magic shell to help Blurp win back his girlfriend.

S2.E3 ∙ Now You See 'Em, Now You Don't

Sheldon makes Johnny and Scott invisible so they can avoid Zelda's niece, but the genie soon falls ill and can't seem to undo his spell. Meanwhile, Big Daddy runs for mayor of the monsters.

S2.E4 ∙ Johnny-O, the Great

Johnny entertains at Zelda's bazaar by performing magic tricks (with sporadic assistance from Sheldon), while Scott displays his unicycling skills. Meanwhile, the Ooze family kidnaps Sigmund and tries to get him to join the Monster Militia.

S2.E5 ∙ Super Sigmund

Sick of being bullied by his brothers, Sigmund wishes for Sheldon to give him the powers of a superhero.

S2.E6 ∙ Pufnstuf Drops In

Sheldon decides to conjure a ferocious dragon to scare Blurp and Slurp, but he winds up with H.R. Pufnstuf.

S2.E7 ∙ Sheldon and the Nephew Sitters

Aunt Zelda goes to visit an ailing sister, leaving her humorless friend Gertrude in charge. Meanwhile, the boys are forced to contend with Sheldon's nephew, Shelby, who promptly turns Gertrude into a parrot.

S2.E8 ∙ One Way Whammy to Tahiti

Shelby zaps Johnny and a pretty classmate to Tahiti. Meanwhile, the Ooze family hatches a scheme to kidnap Sheldon and exhibit him at the monster zoo.

S2.E9 ∙ Cry Uncle

S2.E10 ∙ The Haunted House

While Gertrude and the Sherrif are out at the movies, the Ooze family sneaks into the house.

S2.E11 ∙ Mother Makes Ten

Blurp and Slurp's parents get upset over their grades and kick them out of the cave, but Shelby's mother comes to their rescue.

S2.E12 ∙ You Can't Beat a Magic Carpet

Sheldon and Sigmund get lost when they go on a magic carpet ride. Meanwhile, Blurp and Slurp resort to cheating on their Monster Scouts field testing.