Buster Bunny was horrified to find out Mary Test was running away to the Haunted House because she thought Hugh Test yelled at her too much.
"Dad told us not to go there!" said Buster. Mary didn't listen. She pushed him out of the way and ran off in angry tears.
"Buster, no! It's too dangerous!" said Johnny Test, trying to keep Buster from getting involved.
"She can't make it if she stays there. I'm bringing her back right now!" said Buster.
"Go on, Buster. I don't care what she thinks about us. Just bring her back!" Susan agreed.
Stitch was on Susan's side. "He can do it on his own. He's done it many times before."
Buster set off for the Haunted House where Mary was hiding and enters. There, to his horror, he found Mary asleep, ignoring the monsters.
"Mary! Wake up! He threw garlic at her head to wake her up.
Mary screamed as she got hit by the garlic. "What just happened!?"
"Dad told us not to go into The Haunted House!" said Buster sternly. "There are monsters like vampires, werewolves, bear beasts, mummies and dragons!"
"I told you not to come after me!" Mary scowled. "I had to run off because he yells at me all the time!"
Vampire Gumball noticed them. "Hey! A bunny!"
"Let's get out of here!" cried Buster. He put her on his shoulder and began to run.
"After them!" yelled Vampire Gumball.
Various monsters chased Buster and Mary until they ran out of the house. They immediately ran home.
When they made it back home, Buster caught his breath and told Hugh he saved Mary for him. Hugh was grateful to tell Lila about it. "He did it! Buster saved Mary!" He turned and scowled at Mary. "Mary Vanessa Test, what were you thinking? You could have been turned into a monster!"
Mary glared at him. "I don't care what you think of me! I had to run off to the Haunted House because you yell at me all the time!"
"Mary, you have to learn to behave like Susan does." said Hugh sternly. He turned to Buster. "Buster, thanks for saving Mary."
Buster shrugged. "It was nothing, Dad. She wasn't supposed to go there."
Susan and Stitch were happy for Tails. "Yay, Buster!" said Susan. She hugged him.
"Good going, Buster!" said Stitch. They did the fist bump.
At 9:00 pm, Hugh and Lila were proud of Buster for saving Mary from the Haunted House. For doing so, he was rewarded. For his award, he was given fudge brownies. Buster was happy. He hugged and kissed his mother and father and told them, "You're the best parents."