Dong-wook, in his late teens, is falling behind in his studies and has already transferred schools three times. Dong-wook's only friend is a Labrador named Hearty, a present from his late father. When Hearty gives birth to three puppies, Chubby, Dodo and General, Dong-wook becomes even more obsessed with Hearty and raising her puppies. Worried and displeased, Dong-wook's mom decides to send Hearty and the puppies away to her brother's place without giving them a proper goodby...more

Dong-wook, in his late teens, is falling behind in his studies and has already transferred schools three times. Dong-wook's only friend is a Labrador named Hearty, a present from his late father. When Hearty gives birth to three puppies, Chubby, Dodo and General, Dong-wook becomes even more obsessed with Hearty and raising her puppies. Worried and displeased, Dong-wook's mom decides to send Hearty and the puppies away to her brother's place without giving them a proper goodbye. A major diamond theft makes the national headlines. Hiding from the police, the burglars conspire to siphon off the diamonds abroad by concealing them in a stuffed animal, so they kidnap General, the new puppy in town. Witnessing General's kidnap right in front of her eyes, Hearty chases after the burglar, struck like a bullet. When Dong-wook arrives at his uncle's place to take back Hearty and the puppies, he finds that Hearty and General have gone missing. While Dong-wook is searching desperately for them, Hearty locates the burglars hideout in an abandoned school. Hearty rescues General, swallows up the diamonds and runs away, and so begins the chase between the burglar and Hearty, a dog that can outsmart them all.




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