东宇(宋仲基 饰)从小就失去了父亲,和母亲以及父亲留下来的一条名叫“心心”的狗过着相依为命的生活,内向的东宇没有什么朋友,心心是他唯一且最坚实的依靠。心心怀孕生下了三只小狗,东宇给最小最体弱多病的那一只取名为“将军”,希望它能够渐渐变得结实强壮。 妈妈担心狗狗们的存在会影响到东宇的学习,于是偷偷的即将狗狗们送到了东宇的舅舅(权海孝 饰)家中,得知此事的东宇感到十分伤心。没想到,一伙珠宝盗窃犯盯上了孱弱的将军,他们想将将军制作成标本,作为运输脏污的容器。盗窃犯们偷走了将军,发现此事的东宇紧追其后,自此也失去了音信。When lovable Labrador Maeumee has a set of puppies, Dong-Wook's grades start to suffer. Because of this, Dong-Wook's mother decides to get rid of Maeumee and the puppies. The dogs then stay at a relative's 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?