Young-gu hides in a cave during a game of hide-and-seek. There he finds a humongous dinosaur egg, which soon hatches. The baby dinosaur, Princess Zzu Zzu, wanders around and is saved by Young-gu. They become fast friends. Running from the police and thieves who are after the dinosaur, the two friends hide in a cave but are soon found out and captured. At that time, Zzu Zzu's mom comes to Seoul to find her baby. Chaos and mayhem ensues and the army is sent out to stop the dinosaur. A tremendous battle between the Zzu Zzu's mom and the army takes place and although she rescues Zzu Zzu and Young-gu from the thieves, she is killed by air force's missile. Despite Young-gu's pleas to stop, the police shoot at Zzu Zzu. Zzu Zzu saves her own life by faking her death.
Mang-wol, a master of martial arts, has doubts about the life he has led. Taking Yong, the son of Pak who he had nearly killed in a fight, Mang-wol disappears. As time passes, Mang-wol teaches Yong martial arts. Yong becomes an adult. He goes into the city to get medicine for Mang-wol. Yong runs into Nan-si, a woman of the Shaolin training hall, who takes all his gold. Yong is unable to defeat Paeng's fighting skills but Mang-wol saves him from his predicament. Paeng knows that Mang-wol is the enemy who killed Yong's father. Paeng searches out Mang-wol. Yong deceives Mang-wol and goes to see Nan-si. Yong becomes the manager of the Shaolin Hall but Paeng cruelly beats him up and Yong returns to Mang-wol. Mang-wol tells Yong the truth about his past and dies in a fight with Paeng. Yong practices the new fighting technique he's developed and fights Paeng.
