Castle and Beckett in “Once Upon a Time in the West”

Castle

But if Whitney was searching for the gold and the killer tracked her, there could be clues.

Beckett

You keep assuming that the gold's still out there. Don't forget, Clyde and Dutch were looking for it. They might have found it.

Castle

Not if they didn't have those old maps that Whitney had.

Beckett

You just wanna go after the gold.

Castle

Of course I wanna go after the gold! It's gold!