A bus from Monster High was going to Monster's Inc. Mr. Jinn was chaperoning them for their trip there. He wants them to be on their best behavior and hopes that Logan Nor Sirena won't wonder off again.

At the entrance, they met Mike Wazowski and his best friend James P Sullivan,(Sulley). They explained that Henry J Waternoose I founded the place, "My dad, "Bill" was a famous scarer here." Sulley explained.

Then a crab/spider monster came in, "Who's the old coot." Grogan asked as the spider-crab monster glared at him.

"That's Henry J Waternoose III" Mike answered, "The founder's grandson"

Later, they arrived at Floor F where Mike and Sully worked at. The Scarers came to their positions and got ready. "We are on in 7, 6, 5, 4, 3, 2, 1," said a red monster with 7 fingers on each hand. One by one, the monsters all scared little kids and filled up the yellow tanks. Sulley did one with 10 tanks because of a slumber party.

Skyler, Sirena, Layla, and Fluttershy were horrified by what they're doing, but it's part of their job, "Boy I'm feeling good today" Sulley smiled.

A purple scary chameleon-like monster was angered because he's the 2nd top scarer while Sulley was the top scarer, "Just give me another door!" he yelled has his 3 eyed assistant, "Fungus"

One of the monsters, "Pete" was nervous because a 6-year-old girl got close to it and he could've died. "Hey we got a dead door over here!" shouted his assistant as they shredded the door, "We've lost 58 doors this week." said the red monster to Mr. Waternoose, who was checking out Floor F

"They just don't get scared like they use to," Watternoose replied.

Grogan tried to stick his tongue out, but Janel and Logan stopped him. Then Nathalia held still, meaning she has another oracle prediction, "I foresee James P Sullivan retrieving papers to a slug monster when he comes across a human girl with a white door with pink flowers. There they'll try to get her back to her room in the human world and stop an illegal project." Nathalia explained.

They saw a hideous slug lady and hoped that Nathalie meant her.

An orange monster came out with a sock on his fur, "2319" shouted his assistant.

Jerry rushed to the emergency CDA button, "George Sanderson, please remain motionless." said the recording on the intercom, "Prepare for decontamination."

A group of monsters in yellow outfits, they rushed to Floor F. The slug lady closed her office, much to The Celestian Alliances suspicion. After they removed and destroyed the sock and shaved George. They closed the office for a half-hour. "47 days without a problem." Waternoose groaned.

Mr. Waternoose explained to Sulley that the company has been in his family for 3 generations and would do anything to keep it from going under. He also explained that he hired some new recruits and they stink and he was wondering if Sulley can show them what it takes to be a scarer. After he left, Mike rushed to Sulley, "Today is my gal, "Celia's" birthday and I need you to do a favor," Mike explained, "I need you to fill my paperwork. Pink accounting, fuchsia goes purchasing, ivory goes to my supervisor, and goldenrods go to Roz."

"Who's Roz?" Lilo asked.

"The slug lady," Mike answered.

Later the students at Monster High were getting off when Skelita notices that there's something not right, "Sir," she said to Mr. Jinn, "Where's Sirena?"

"She's gone!" Stitch shouted.

"She must be back at Monster's Inc." Will suggests.

Avea decided to go with them, but Mr. Jinn was worried that Avea would get hurt, "She's my sister Dad." Avea said, "And I don't want to lose her."

"Okay." Mr. Jinn replied, "Just don't get hurt."

Avea hugged her father and rode of with The Celestian Alliance.