《万能管家 第三季》讲述的是：　　Fleeing from the twin horrors of prospective marriage and the baleful Aunt Agatha, Bertie sails to New York with Jeeves, where he hopes to lie low but instead he is charged with minding the ultra-shy mother's boy Wilmot, son of Lady Malvern, and showing him the high life. Oddly enough Wilmot takes only too well to the night-spots of Manhattan, wearing Bertie out in the process. Tuppy Glossop also arrives, to talk about car exportation with wealthy businessman Mr. Stoker. Unfortunately Tupper's business plan is nowhere near as lofty as it should be.