Heart is 2 2010 When lovable Labrador Maeumee has a set of puppies, Dong Wooks grades start to suffer Because of this, Dong Wooks mother decides to get rid of Maeumee and the puppies The dogs then stay at a relatives video shop until the animals can be placed into an animal training center Meanwhile, two unscrupulous jewel thieves come into the video store and spots the little puppies Hyeok Pil decides to steal the littlest puppy to use as a runner to transport diamonds Maeumee spots the two men taking away her young puppy and goes after the thieves Can Maeumee save her puppy Will Dong Wook ever get to see Maeumee and the puppies again