Crack Shack. We watch Gordon string one of the tripwires before following him back into the front room, where Dean argues for Sam's life, and Gordon will not stop talking already! And OH MY GOD. He even pulls out that tired old "If you got the chance to kill Hitler before Hitler became Hitler, you'd have to do it, right?" non-argument I grew weary of in high school. SHUT UP, GORDON. SHUT UP AND DIE. Is this scene over yet? I think this scene is over. We have to wait for Gordon to tie a gag around Dean's mouth first? Okay. So, he did it? And this is over? Good.
Outside the Crack Shack, Sam steps into a real-time reenactment of Ava's nightmare, from examining the address on the motel's stationery to edging across the trash-bestrewn front porch to peek through the slats of a boarded-up window to...HEY! He didn't see Dean bound and gagged in that chair before! Nor did he see Gordon sitting stonily at Dean's side with a rifle in his lap! Rip off! In any event, now that we know why Sam picked the lock on the Crack Shack's back door in the premonition, we get to watch him sprint 'round to do it all over again. Meanwhile, Dean's growing increasingly frantic. "You hear him?" Gordon murmurs, cocking an ear towards the rear of the shack. "Here he comes!" Gordon whispers as Sam clicks open the back door. Dean strains against the ropes until the first grenade detonates, flashing red and yellow through the back room. "RRRRAAAAAAAHM!" Dean screams through the gag in his mouth, and I must assume he's calling not for my United States Representative, but for his brother. "Hold on," Gordon croons, "not yet. Just wait and see." And the strings go apeshit on the soundtrack until a second, even larger explosion rips through the back room with enough force to send shards of wood spinning through the air past Dean's head. When the blast wave passes, Dean looks like he's going to cry. Awwww. Not. What a fricking pussy.