It's that glorious period between the two world wars, and the exiled king of Mitteleuropa is visiting the ancestral home of the Duke of Tawcester. When the ex-king's daughter is kidnapped, noblesse obliges the Duke's handsome, brave, and rather stupid son (known to all as Blotto) to drive off to the rescue. Luckily, he's aided by his brilliant sister, Twinks. Plus, he's got a really swell car.

Blotto and Twinks travel to America! Specifically, they travel to Chicago (and this would be during the Prohibition years) in the hopes of marrying Blotto off to an American heiress and thus saving Tawcester Towers from financial ruin. Thankfully, Twinks is around to nose out the dirty undertakings of the heiress's father, a meat-packing magnate and Chicago mob associate.