Young Justice, Season 1

Martian Manhunter:
No, my mind is clearer now. The disintegration beam is exactly that. There is no detention facility. No prisoners to rescue. Our mission holds no purpose.

Kid Flash:
NO! You're wrong. The Zeta radiation proves she's alive. She's...

Robin:
Stop it, KF. I've been scanning for League and team signals since we got inside. They're not here. Artemis is gone. But our mission still holds purpose - to destroy this mother ship.

(as Robin is planting bombs in the alien mothership)

'Kid Flash:
You knew. You knew from the beginning why we were really here.

Robin:
Four minutes. Let's go.