Moira Kelly (Karen) does not appear in this episode.

Peyton: It was stupid, okay? You're with Brooke now.
Lucas: Yeah.
Peyton: We just got carried away. It didn't mean anything.
Lucas: It didn't?
Peyton: Of course it did.

Peyton: Hey, Dad. What’s going on with the Unibomber look?
Larry: I was going for George Clooney.
Peyton: Go further.

Peyton: I just got a phone call. Um, it’s the storm. My dad’s transport is missing. There were three guys on it. They recovered a body.
Lucas: What’d they tell you?
Peyton: I have to go see if it’s him.

Royal: So, 24 a game huh? You’re gonna have to get that up if you’re going to beat the old man. Yeah, your dad's star would have risen through the roof at Carolina if it wasn’t for that damn knee of his. How are your knees?
Nathan: No worries.
Haley: Oh, he’s got great knees.

Nathan: Hey, remember how I said “My family’s so screwed up, nothing new would make a difference”?
Haley: Yeah.
Nathan: I was wrong.

Nathan: Why should I believe it? This whole time you’ve been riding me you’ve known exactly the way I feel. Now that that’s in my head it just makes it that much worse.
Dan: I was a great player, Nathan. In high school. But when I got to Carolina, I knew it wasn’t going to be the same. My dad couldn’t see it though. It was hard on your grandmother too. So when I got hurt. She came to me and pleaded with me to walk away. She said it would be better for all of us. So I did. Worst decision of my life. It felt good to get out from underneath my father. And after a while I realized I wasn’t playing for him at all. The game meant the world to me. I just never took the time to stand back and realize that. So I tried to get back into it. Rehab, running, weights. But it was too late. My knee never responded. It was over for me.

Royal: Listen, Nathan, whatever you’re going through, I’m sorry about your dad.
Nathan: I understand why he did it, Grandpa. He must have really loved you, you know that? 'Cause anything seemed better than disappointing you.

Haley: Now that you know the truth about your dad, you’re free, right? I mean, he’s been lying to you all this time. You don’t have to listen to him anymore. There’s no more pressure.
Nathan: Yeah, I wish that were true.
Haley: What do you mean?
Nathan: My dad walked away, and his father will never forgive him for that. I have to go back.
Haley: Nathan, I --
Nathan: I have to beat him. Haley, it’s the only way I’m ever going to be free of my dad.

In the hotel room, the can of Pepsi behind Lucas changes positions between shots while Lucas is talking to Peyton before the alarm goes off.

Episode Title: Crash Course in Polite Conversations

"Crash Course in Polite Conversations" is a song by Gameface.

The arrival of Dan's parents to Tree Hill adds depth to Dan's character that he hasn't had in the previous 11 episodes of the series. Seeing how Dan's father bullies Dan in the same way that Dan treats Nathan gives added information about why Dan is the way he is towards his son. The reveal about why Dan quit his college team also provides answers as to why Dan is unable to let go of his past and has such regret towards his day as a player.