史瑞克和费奥娜公主结婚后,国王哈罗德因为身患重病,决定将王位传给史瑞克。史瑞克对于做国王、做父亲完全没有信心,情愿带着毛驴和靴子猫出发寻找另一位王位继承人——费奥娜公主的兄弟亚瑟。谁知亚瑟是个极端自我和反叛的高中生,一路上给史瑞克他们惹了不少麻烦。史瑞克只好耐心地开导他,把他变成合格的国王人选。 After Shrek married Princess Fiona, King Harold decided to pass the throne to Shrek because of a serious illness. Shrek had absolutely no confidence in being a king and father, willing to set off with donkeys and boots to find Arthur's brother Arthur, another heir to the throne. Who knows Arthur is a very self and rebellious high school students, along the way to Shrek them mess with a lot of trouble. Shrek patiently enlighten him, turning him into a qualified king.