Captain Rex, 212th Clone Trooper and others in “Unfinished Business”

[after realizing the clones have been tricked into shooting each other] What?! [runs back to the scene, frantically waving his arms] Everyone, stop firing! We're shooting at our own men! They're not Umbarans! They're clones! Take off your helmets! Show them you're not the enemy! [removes his helmet] They're clones!

Whoa, whoa, whoa, whoa.

Everyone, stop firing! Cease fire! They're not Umbarans! They're clones! [tackles a shooting clone, takes off his helmet and holds him up to the so called 'enemy'] Look! We're clones! We're all clones! [clones stop firing and realize they're shooting each other]

[horrified] What?!

[after tending to the wounded] This can't be happening, what have we done?

I don't understand. Why did these troopers attack us?

Captain, I found a platoon leader. It’s Waxer. He’s still alive. [He takes Rex to Waxer]

Waxer... tell me who gave you the orders to attack us.

It... It was General Krell. He sent us to these coordinates to stop the enemy. We thought they were wearing our armor, but it was... You. [sheds a tear and dies]

[to the clones] We all know who's responsible for what happened out there. What we don't know is why. Something has to be done. What I'm proposing is highly treasonous. If any man chooses to opt out, do it now. [the clones take a step forward] From this point forward, we are entering uncharted territory. My orders are, we arrest General Krell for treason against the Republic.