Castle, Season 6

Alexis:
Bike tracks. There were bike tracks outside Kim's house. Dad, do you realise what this means?

Castle:
That maybe the party Kim went to was at that farmhouse, and she saw kids doing meth.

Alexis:
Well, not just doing meth. Cooking meth.

Castle:
That's why she had to get out of there. That's why she told Lyle she had some decisions to make.

Alexis:
She was thinking about turning them in. So when she left the party...

Castle:
Maybe one of our teenage meth cookers got worried she would go to the cops.

Alexis:
So he went after her.

Castle:
On his bike. The tyre tracks at her house. He knew where she lived because he'd been there before.

Alexis:
He was one of the other guys Kim was seeing.

Both together:
We need to talk to Kim's mother.

[both look at each other in surprise.]

Castle:
Now that was weird. Usually I do that with Beckett.

Alexis:
[looks disgusted] Oh.