Castle, Season 6

[After Beckett learns that nothing will be done about Reed]

McCord:
You want everything to be black or white, I get it. But, in this town, it rarely is, and to do this job, you're going to have to make peace with that. But hey, that was a hell of a hunch about Mrs. Reed. [Beckett stands up and McCord follows] You should feel really good about this.

Beckett:
Yeah, well that was Castle.

McCord:
But you were smart enough to act on it. That was your call

Beckett:
And you backed me up without even knowing my play.

McCord:
That's what partners do. [Turns and walks away]

Beckett:
[Turning back to the emergency room] Yeah. That's what partners do.