Kono: I don't get it. Why didn't you tell me?
Adam: I don't know. I guess I just didn't want to let you down.
Kono: You can never let me down. Just never lie to me again.

McGarrett: I know it's not going to bring your grandfather back, but these guys aren't going to hurt anybody else.
Lexi: Thanks for keeping your promise.

Adam: I can't meet you for lunch today.
Kono: That's good, because I think I've run out of sandwich ideas.

War is messy, and I thought you, better than anybody, would understand that, Commander McGarrett.

Campbell [to McGarrett]

Let me see that. [Looks at the bullet from McGarrett's vest.] All right, Superman.

Grover

Adam: At the end of the day, I get to come home to my beautiful smoke-show of a wife.
Kono: Your what?
Adam: That's what the guys are calling you.

I'm really proud of you, Dad. I mean that.

Will [to Grover]

You saved our lives, Jerry. It's been a long time coming, but you deserve it.

McGarrett [to Jerry]

McGarrett: You came after us, and you came after our families. So you get to die in prison.
Shioma: Maybe, maybe not.

Don't go crazy on the room service. This ain't 'Home Alone,' and you ain't Macauley Culkin.

Grover [to Will]

Danny: You're a Navy Seal, You know how to pick a lock.
McGarrett: They taught me how to set a C-4 charge. Not how to be Houdini.

Yakuza thug: You're trespassing.
McGarrett: This is private land. So we're both trespassing.

Hawaii Five-0 Quotes

Steve McGarrett: What kind of sick bastard kills a cop in cold blood?
Danny Williams: One with a serious grudge.

Danny: Boxing or MMA?
Grover: Boxing, no question