Xing, a little girl that wins every game she plays is taken to a casino by Jon Dallas, her greedy grandfather. Convincing Xing and her brother to leave their video games, the three go to Vegas to win big after Jon notices Xing's superstitious abilities with luck. Once in Vegas, Xing pulls a rigged machine and is told that the family owes the casino $600,000. Jon Dallas decides to cheat and change the ticket to make it look as if they won and they are given a rewards card, which they spend irresponsibly. Eventually, the casino finds out they've cheated and Mr. Las Vegas, the owner of the casino, forces them to work of their debt eternity. Jon Dallas escapes and Xing is offered the rights to inherit the casino. At the end, a wild chase sets them free.
