Meet the Spy2009

Spy:
[while the BLU Spy talks, various scenes of the RED Spy killing other members of the BLU team are shown] This Spy has already breached our defenses... You've seen what he's done to our colleagues! And worst of all, he could be any one of us... He could be in this very room! He could be you! He could be me! He could even be- [the Spy is cut off as his head explodes violently. The camera switches to the Soldier, shotgun in hand, with a confused Heavy and a panicked Scout]

Scout:
Whoa, whoa, whoa!

Heavy:
Oh!

Soldier:
What? It was obvious! He's the Red Spy! Watch, he'll turn red any second now... [the Soldier and Heavy approach the dead Spy, with The Soldier prodding the Spy's foot with his shotgun] *Any* second now... See? Red! Oh, wait... that's blood.