David (Kemp) is an American architect who recently moved to London for a prime opportunity in a prestigious firm. With just three days before Christmas, he has yet to purchase a gift for his girlfriend, who also happens to be the bosses daughter. While out shopping, David crosses paths with Anji (Shetty), a professional shopper, who raises an eyebrow over his choice of a gift card. When David and Anji end up crossing paths again, he decides to hire her in the hopes of finding just the right gift. Thanks to a series of unexpected events, David finds himself on a wild adventure across Jolly Old London as Anji helps him search for the perfect present.