克里斯•加纳（威尔·史密斯 Will Smith 饰）用尽全部积蓄买下了高科技治疗仪，到处向医院推销，可是价格高昂，接受的人不多。就算他多努力都无法提供一个良好的生活环境给妻儿，妻子（桑迪·牛顿 Thandie Newton 饰）最终选择离开家。从此他带着儿子克里斯托夫（贾登·史密斯 Jaden Smith 饰）相依为命。选段中，克里斯和的生活刚刚脱离窘境，走上正轨，也有了点小积蓄，但是，政府却因为收税，把他的仅有的积蓄拿掉了大部分。在遭遇房东催房租，收债不顺利之后，他意外地发现了那个捡了他被迫扔在地铁站的仪器的精神病人……
Chris: (After four months,we had sold all our scanners. It seemed we were making it.)
What's the fastest animal in the world?
Chris: (It seemed we were doing good. Till one day...that day...that letter brought me back to earth. This part of my life is called "Paying Taxes." If you didn't pay them the government could stick their hands into your bank account and take your money.)
(It was the 25th of September. I remember that day. Because that' the day that I found out there was only 21 dollars and 33 cents left in my bank account. I was broke.)
Ralph: Chris!Chris!Don't jerk me around,okay,Chris?
Chris: I'm not jerking you around,Ralph,all right?I'm gonna get it.
Ralph: I need that money now,not later.
Chris: When I get it,you get it,Ralph.
Wayne: Hey,what's happening,man?
Chris: Wayne,I need to get that $ 14 from you.
Wayne: I thought I didn't owe you that now.
Wayne: Why what?
Chris: Why would you think you don't owe me my money?
Wayne: I helped you move.
Chris: You drove me two blocks,Wayne. That's 200 yards. It's been four months,Wayne. I need my money. I need my money. I need my money right now.
Wayne: I don't have it,man. I'm sorry.
Chris: Go get my money. Wayne,get my mo...
Wayne: I really don't,man. It's $ 14.
Chris: It's my $ 14!Go get my money!
Wayne: All of this for $ 14.
Chris: Get my money,Wayne.
Christopher: Dad,look at me! Dad. Should I go?
Chris: Sure,man. Why not? Stay here.
Chris: No,no. Stay right here.
Chris: Did you hear what I said?Did you hear me?
Christopher: Dad,where you going?
Chris: Hey,what did I say?
Christopher: Dad! Dad,wait!Dad! Dad.
Stranger: I gotta...I gotta get back to the '60s,man. That's what I wanna do. When I was younger. I wanna see Jimi Hendrix do that guitar on fire. Bring back my time machine. Bring my time machine back!