Mike, Sulley, and Boo ran onto the Scare Floor. Mike swiped a card key in a door station and they waited anxiously for the door to appear.

Randall and Fungus were right behind them. “There they are!” Randall cried. But suddenly a voice crackled over the intercom system. “Attention, employees. Randall Boggs has just broken the all-time scare record!”

Before Randall and Fungus could take another step, they were surrounded by a crowd of excited monsters. The crowd cheered and tossed them in the air.

Nearby, Celia hung up the intercom phone and smiled.

The crowd slowed Randall down for a while, but not quite long enough. Sulley gasped as the lizard monster charged toward them. Thinking quickly, he hit the keypad. The door that had been about to drop into the station suddenly reversed and began to head back into the door vault.

“Grab on, Mike!” Sulley shouted. Holding Boo in one hand, Sulley grabbed a rising door with the other. Mike clung to his tail. The three sailed into the air—up and out of Randall’s reach.

Inside the door vault, millions of doors on conveyor belts stretched as far as the eye could see. Mike, Boo, and Sulley screamed as the door they were riding dropped steeply into the vault.

Suddenly Mike cried out, “There it is!” Just ahead on the track was Boo’s door!

But before they could reach it, Boo’s door split off onto a different track and began to move away from them.

Their own door began to slow down. Mike looked ahead and gulped. “This is a dead end, Sulley,” he said. Turning to look behind them, they saw Randall riding toward them on another door. It looked like a dead end, indeed!

Then Sulley had an idea. “Make Boo laugh!” he told Mike. They could use the power to activate the doors!

“What?” Mike said, confused.

“Just do it!” Sulley cried. Reluctantly Mike poked himself in the eye. Boo gave a big belly laugh.

As Boo’s laughter echoed through the vault, the lights on all the doors lit up! Just as Randall was about to reach them, the three friends opened a door and jumped into the human world. They ended up in a house on a beautiful sandy beach.

“Come on!” said Sulley. “We’ve got to find another door.” Dashing into another house, they found a closet and opened the door. They were back in the vault, standing in a doorway thousands of feet in the air. Door after door stretched below them. Boo’s door was stopped just ahead. Carefully they began to make their way toward it.

But Randall was right behind them! Entering and exiting through different doors, Sulley, Mike, and Boo jumped in and out of the human world, with Randall hot on their trail.

“Jump!” Mike said to Sulley, opening a door and waving his buddy through. “I’m right behind you!” Just as Randall reached the door, Mike slammed it in his face.

“I hope that hurt!” Mike yelled as he jumped onto a moving door right behind Sulley and Boo.

“Great job, buddy. I think we lost him,” Sulley said. But he spoke too soon. Suddenly Randall appeared next to them and leaped onto their door. He snatched Boo out of Sulley’s arms with his tail. The little girl screamed.

“Boo!” cried Sulley. At that moment, Randall yanked out the pin that held Mike and Sulley’s door to the track. The door began to fall.

“Nice working with ya!” Randall said with a sneer. Mike and Sulley’s door plummeted into the vault. Randall took off with Boo tucked under his arm.

“Get it open!” Sulley cried as the door sailed through space.

“I’m trying!” Mike said, tugging at the doorknob. At last the door opened. Mike jumped through. Sulley followed him and shut the door in the nick of time. The door hit the ground and smashed into pieces.

A door opened in another part of the vault. Sulley and Mike stood in the doorway. They breathed a sigh of relief. That was a close one!

Just then, in the distance, Sulley spotted Randall! Sulley climbed up to the top of the door he and Mike were riding on. Following Sulley’s lead, Mike jumped onto another door. “Aaaahh!” he screamed. The two friends took off, flying along the track at breakneck speed.

“Looks like we caught the express, pal!” Mike exclaimed.

In no time they caught up with Randall and Boo. But just as Sulley was about to grab him, Randall leaped through the door he was riding. Sulley followed them into a kid’s bedroom.

“Boo!” Sulley cried. He hurried toward his little friend, who stood on the other side of the room. But before he could reach her, Randall tackled him. Sulley fell out the open door. Dangling thousands of feet in the air, Sulley clung to the door frame with one hand.

“You’ve been number one for too long,” Randall shouted at Sulley. “Now your time is up. And don’t worry, I’ll take good care of the kid.” Randall began to peel Sulley’s fingers off the door.

Suddenly Randall screamed in pain! Boo had climbed onto his back and was pulling on his head fronds! As Randall struggled to get her off, Sulley climbed back into the room. He grabbed Randall by the neck.

Boo babbled something to Sulley. He put his face up close to Randall’s. “She’s not scared of you anymore,” he told the monster. “Looks like you’re out of a job.” Boo growled in agreement.

Nearby, Mike held up a door. “All right, Sulley. Over the plate. Let’s see the old stuff, pal. Here’s the pitch.…” Sulley wound up and threw Randall through the door like a baseball. “And he is…outta here!” Mike cried, slamming the door behind him.

Randall landed in the closet of a house in the middle of a swamp. A little boy saw him.

“Mama!” the boy called. “’Nother gator got in the house.”

“’Nother gator?” the boy’s mama said. “Go get the shovel.”

“Ooph!” Randall grunted as the boy clobbered him on the head with a shovel.

“Get back here,” the boy said, swinging the shovel again.

Meanwhile, Mike lifted the door to the edge of the platform and pitched it over the edge. The door sailed into the vault and smashed into pieces. Randall was gone—for good.