When Gweelok builds a teleport-a-potty, Festro and the monsters search for a place where pizza grows on trees. But when Festro went to go "boom boom" and flushed the teleport-a-potty, the monsters get stuck in another universe where they have to defeat an evil villain named Helmethead in order to reclaim the toilet of the land.

The Disgustoids disguise themselves as cops so they can walk on the surface, but whilst The Fart wants to follow the duties of a cop, all Festro, Gweelok, Dingle, and Slog want to do is pump up the jams.

The Disgustoids are delighted when Secret Mountain Fort Awesome comes to life and starts wrecking havok on the surface world, but when Fort falls in love with another mountain, Festro tries to break up the relationship, but ends up having to repair his broken heart.

The monsters bet Gweelok that if he used the Internet within 24 hours, he would have to stop using it at all times so he can hang out with them forever and ever.

Gweelok invents a special sauce to help Festro get rid of his nightmares, but after Festro overdoses on the batch, it causes his bad dreams to run amok in the real world.

When Festro's nephews pay a visit to the fort, they turn out to be complete wimps, so the gang teaches them how to be "rude crude dudes with attitude", but their efforts go too far.

After giving all the gang's money to a deposed prince from Nawibawabi, Gweelok needs to find money to pay the fort rent. The Disgustoids try to find a new roommate, but it turns out that she is the prince from Nawibawabi.

The bros make 1,000 The Fart clones after looking through his diary of juicy secrets, so they try to get rid of them before the real Fart finds out.

When Festro's favourite chair is destroyed, he tries to find out who did it.

The Disgustoids discover that their newly repaired Megavision has the ability to see into the future.

Every time the Disgustoids have a party, Slog turns into "Party Slog" which annoys the bros, but when trouble strikes they need him to do so.

The Disgustoids go on a road trip.

When Dingle abandons his friends they try to get him to come home.

When Festro finds out about a place called "Colonel Monster's Monster Time Pizza Palace" he goes there only to get trapped by the people who go there.

The Fart is elected as the Disgustoids' new leader when everyone tires of being bossed around by Festro.

Uncle Grandpa shows up at a lame birthday party and tries to make it cool.

Festro gets glasses so he can look smarter, but he thinks wearing glasses means "smort".

Festro experiences a personality change after getting an aching tooth pulled out.

When Gweelok wishes that Jerry, the Goblin King, would come take his annoying friends away, he realizes how much he misses them and has to enter the twisted world of the Labyrinth to rescue them.

Gweelok is excited to meet his science idol, but grows more and more frustrated when he starts taking an interest in Festro.

When the Disgustoids steal the sun and bring it underground, all the elderly people follow.

Festro learns the joys and horrors of parenting when Dingle steals Ham Sandwich (from Uncle Grandpa) and gives him to him for his birthday.

While travelling to Dingle's family reunion, numerous setbacks keep Dingle and The Fart from making it, until The Fart realizes that Dingle is sabotaging their trip.

Festro and The Fart take up wrestling and become hugely popular, all in the name of a single french fry.

Festro goes on a quest to Alaska for some Velcro shoes.

When a werebaby bites all of the Disgustoids but Slog, they start turning cute, so Slog must find a way to cure their affliction and make them disgusting again.