【内容简介】

  月球最高监狱,穷凶极恶的伯格罗多星人鲍里斯(杰梅奈·克莱门特 Jemaine Clement 饰)越狱逃亡。他在1969年犯下邪恶罪行,最终被年轻的K(乔什·布洛林 Josh Brolin 饰) 砍掉一只手臂,送入监狱。此次他逃脱的目的,就是穿越时空杀死K。与此同时,J (威尔·史密斯 Will Smith 饰)和K(汤米·李·琼斯 Tommy Lee Jones 饰)一如既往处理各种外星人引起的混乱,因对鲍里斯的案件三缄其口,两个好搭档心生隔阂。崭新的一天,J发现K消失不见,周围更几乎没人知道K这个人。此时的K已在40年前被鲍里斯杀死,他所建立的A网也不复存在。在这危急时刻,伯格罗多星人大举入侵地球。为了保护家园,J必须穿越时空再次改变历史……   

【选段台词】

O: If Boris worked out how to time jump, he could seriously change the course of history.

Broadcast: Attention. Early warning system engaged. Inbound hostile warships entering solar system. Boglodite markings and language detected.

J: Boglodite. Boris is a Boglodite, but they're extinct.

O: Apparently not.

Broadcast: Catastrophic Earth attack imminent.

J: Put up the Arc Net.

O: The what?

J: The Arc Net. The defense system. K got it for the Boglodites.

O: There is no K. He's been dead for over 40 years.

J: No K. No defense system. Boris jumped back and killed him.

O: If you wanna save the world, stop that from happening. You have to find Jeffrey Price. He's Obadiah's son. Let's hope the little squirt hasn't skipped town. Good luck, J!

Monster: This planet's toast.

Jeffrey: How can I help you? We're having an amazing sale on batteries. Okay, we got other stuff, like headphones, adapters or--

J: You helped Boris the Animal time jump.

Jeffrey: Okay, I had to. That dude's a freak.

J: He killed my partner. I want to know when and where you sent him.

Jeffrey: What, you think I keep, like, a logbook?

J: Target vector, July 16 1969.

Jeffrey: All right. That's a real bummer about your buddy. I'm sure he was a great guy. But in terms of the space-time continuum your friend was a little blip on the historical radar! That's a big blip. Okay. What's the plan?

J: You're gonna send me back to July 15th, 1969.

Jeffrey: No, that's a stupid plan, because I sent Boris to July 16th.

J: I'm not worried about that one. I'll kill the younger Boris before the older one shows.

Jeffrey: That way, neither of them will even exist. That's why you get to wear the black suit. No? You're gonna leave me hanging? Okay. Oh, I just thought of something. Even back then New York was like a big-ish city. So how are you gonna really find him?

J: On July 15th, Boris killed an alien, Roman the Fabulist, at Coney lsland.

Jeffrey: You're gonna get there first and be waiting? Dude, they should give you two black suits.

J: My man, for real?

Jeffrey: Oh, right. Sorry. This is the real deal. Time-jump gear. Very rare, very old. But first, we gotta get high.

J: Hey. No.

Jeffrey: No. No, I mean, really high. Hey, man? A little help here? Thank you. Okay. You know the rules of time jumps?

J: Give me the short version.

Jeffrey: Okay. You wanna save your partner, word of advice: Stay away from him.

J: Yeah, got it. Stay away from K. Just kill Boris.

Jeffrey: Now, take these. It gets pretty windy on the way down.

J: The way down?

Jeffrey: With eyes tearing up, it's hard to read the dial. Plus, it helps you look like a real time traveler, which is cool.

J: I am not jumping off of this building!

Jeffrey: Time jump.Okay, now. I gotta set this thing to the 15th. That seems right-ish. Now all you gotta do is jump.

J: Hey, hey, stop. Stop it.

Jeffrey: When you're moving fast enough that circle is gonna fill up with some sort of green time-travel liquid and it's gonna glow really bright. As soon as that happens, break that blue laser line. At this height, that should be. Let's see, mass of Earth and 30-something feet per minute.

J: It's 32 feet per second. Per second.

Jeffrey: That sounds right-ish.

J: I break the laser line?

Jeffrey: No, don't break it!

J: No, when I'm fast enough!

Jeffrey: Sounds good!

J: Do I break the laser line or do I not break the laser line?

Jeffrey: Do not lose that time device or you will be stuck in 1969! I'm just saying. It's, like, a lot cooler now.

J: How will I know if it works?

Jeffrey: You'll either know or you won't. You must really love this guy to do this.

J: Oh, wait. How come I remember K, but nobody else does?

Jeffrey: That means you were there!

J: I was where?

Jeffrey: If you survive, you gotta come back and tell me everything.

J: Where was I?

Jeffrey: You gotta go! Just go, go, go!