Of the famous Three Little Pigs, Heimlich is the one porker who finds a conspiracy around every corner. When The Big Bad Wolf moves in next door, Heimlich tries to warn his piggy pals Horst and Dieter that this may not bring a fairy-tale ending. Tired of hearing him 'cry wolf,' they ignore Heimlich's warnings until it's almost too late for them to live happily ever after. The chase is on!

又是一年万圣节，夜幕降临，万籁俱寂。山脚下只有镜像影院门口还灯火通明。这里正在上映经典名作《音乐之声》，且仅作一夜放映。突然之间，史瑞克（迈克·梅尔斯 Mike Myers 配音）痛苦哀号，夺门而出，显然他不喜欢这种温情调调，而更愿意应景地看一些僵尸、木乃伊一类的恐怖电影。为了调侃这位胖朋友，驴子（艾迪·墨菲 Eddie Murphy 配音）在靴猫（安东尼奥·班德拉斯 Antonio Banderas 配音）的吉他伴奏下唱起了恐怖歌曲。随着午夜钟声响起，法尔奎德（John Lithgow 配音）等人的鬼魂从坟墓中爬出，聚集在街头巷尾，环绕史瑞克跳起了令人战栗的死亡之舞…… 本片戏仿了迈克尔·杰克逊经典名曲《Thriller》的MV。

Shrek challenges Donkey, Puss in Boots and his other fairy tale character friends to spend the night in Lord Farquaad's haunted castle, telling scary stories to see who can resist becoming scared and stay the longest.

The Christmas tree isn't the only thing green in this new holiday classic. Shrek is back and trying to get into the spirit of the season. After promising Fiona and the kids a Christmas they'll remember, he is forced to take a crash course in the holiday. But just when he thinks he has everything for their quiet family Christmas just right, there is a knock at the door.