Shifty McGifty and Slippery Sam used to be master criminals but they have long since given up their life of crime for a career in cupcake making. However, when they're asked to bake for a seriously swanky party, Shifty and Sam find themselves caught up in the middle of a diamond heist! Lady Kate's tiara has gone missing and all the clues suggest a penguin is the culprit! However there are dozens of penguins at the party! How will Shifty and Sam get their man, er, penguin? It's not going to be a black and white case.