Kim In-ha is an orphan and grows up with gambler Kim Chi-su. He falls in love with Min Su-yeon and makes friends with Choi Jeong-won, the son of hotelier Choi Do-hwan. Jeong-won becomes In-ha's best friend, he meets In-ha's girlfriend Su-yeon, and falls in love with her.
In-ha is accused of murder by Jeong-won's father and makes an escape to the United States. In Las Vegas he meets a teacher of card games and becomes a professional gambler.
After he wins the World Poker Championship, he returns to Korea to run a casino and hotel business. There he contends for victory and success with his friend but rival, Jeong-won.