自從與瑪戈（米蘭達·卡斯格拉夫 Miranda Cosgrove 配音）、伊迪絲（達娜·蓋伊 Dana Gaier 配音）和阿格蕾絲（埃爾?！べM舍 Elsie Fisher 配音）三個可愛的小女孩實現宿命的邂逅，曾經的大壞蛋格魯（史蒂夫·卡瑞爾 Steve Carell 配音）可真徹底轉型了，他金盆洗手，轉而化身為慈祥可親的爸爸和做得一手爛口味布丁果凍的商人。當然凡事沒有盡善盡美的，在此期間，憧憬大壞蛋傳奇人生的老搭檔納法利歐博士（拉塞爾·布蘭德 Russell Brand 配音）離他而去，另謀高就。某天，格魯被身懷絕技卻魯莽的特工露西·王爾德（克里斯汀·韋格 Kristen Wiig 配音）綁架，原來露西所在的集團研制出可以改變生物基因的藥物，可他們位于南極的實驗室被神秘竊賊偷走，因此才委托有過壞蛋經驗的格魯做臥底。
Rachel, a concerned researcher, and her team have set out to sea to prove that the disappearance of a family and crew from a merchant ship was for reasons having to do with the supernatural. Her theory that those on the Mary Celeste vanished into a "rift" between dimensions proves true as the boat breaks down and her crew begins to vanish one by one.