One Bart and Stormy Knight

One Bart and Stormy Knight is a Bart Simpson's Treehouse of Horror story featured in.

Synopsis
When Bartman's sister, Lisa, is in trouble, Bart does everything to save her.

Plot
Bart was looking out from the Simpson Mansion on a rainy day, he starts to think about his sister Lisa that he had not seen for many years, who was working on a the creepy asylum up the road. She was driven away with his own obsessive behavior as Bartman. Suddenly Bart suddenly sees his Bartman signal from the insane asylum, and he realizes that his own sister, Lisa, is in danger. Bart dresses as Bartman to go to the asylum and rescue Lisa! The police were already there but they decide to let Bartman investigate what happened there first. Bart begins to search for Lisa and he found Drunkzilla and was starting to fight with him. Bartman manages to knock him down. Bartman also hit Mr. Squishee and Kitten Delight after while. After causing a little mishap, the two villans were starting to fight against each other so Bartman leave them it to find Lisa.

Bartman had problem to find Lisa he just heard someone giggle in the dark, suddenly he is knocked down by a large frying pan. Bartman then wakes up in Lisa's lab and she had captured him. Lisa (dressed as The Joker) tells Bartman that he drove every person in Springfield monstrously insane with all his pranks and hooligan behavior- so she had created a home for all the creatures a place for refuge and safety, far away from him.

Lisa tells Bartman too that she had something to show him, she opens a curtain which the rest of his family were hiding behind. and Lisa tell him that they have decided that it was time to kill him, and they start attacking Bartman with weird tools...

Bart wakes up in his bed and he now realized that it was just a nightmare, he goes then down the stairs where he meets his normal family again, but when he sees what they were dressed as, he runs away. It turns out that they have just dressed up for Halloween, Marge points to the family that Bart would not eat so much candy. Homer tells her that it was his own fault, his own jokes make Bart crazy. meanwhile Lisa was laughing at Bart insanely because he was afraid of their Halloween costumes.