He's right, boy.
3 seconds sound clip from the The Big Trail (1930) movie soundboard.
You can hear this line at 01:48:24 in the Blu-ray version of the movie.
Quote context
[...]
- That's a serious charge. If you're sure, we'll call a settlers' meeting in the morning to try 'em.
- You can call a settlers' meeting to bury 'em.
- They've jumped camp, Zeke, and I'm off on their trail.
- Breck, you can't leave us here! You got to see us through.
- Maybe so, the way you all look at it.
- But those two men killed a man in cold blood, and they've got to pay.
- Well, Zeke, I'll see 'em to the end of the trail. But then I'm picking up a new trail here.
[...]