00:00 Every one of these tunnels looks exactly alike.
00:03 Are you sure we haven't been this way already?
00:05 I don't know. All these footprints, it's hard to tell which one are ours.
00:09 Do those look fresh?
00:11 Maybe. Or those might belong to some of the unhoused folks who live down here.
00:16 Or just kids partying.
00:18 Hold on.
00:20 What's this?
00:22 Allie, be careful. Anything could be on that needle.
00:25 Not anything. Atropine. Atropine is an anticholinergic.
00:29 It's used to reduce the symptoms of nerve agents.
00:31 It's gotta be our guys. They crushed it underfoot, kept moving?
00:34 Maybe one of them accidentally dosed themselves. Needed treatment.
00:37 Or Max was exposed.
00:40 Hey, if they gave Max atropine, it means they're keeping her alive.
00:44 Which way did they take her? No way to be sure.
00:48 No blood.
00:52 Hey, can I borrow your luminol? I just got a crazy idea.
00:56 You could use a crazy idea.
00:59 Alright, so as we know, blood activates luminol, causing it to glow blue.
01:05 Okay. Atropine works by blocking muscarinic acetylcholine receptors, right?
01:13 The ones nerve agents overstimulate.
01:15 And just like it blocks those, it also suppresses the electrons in activated luminol.
01:21 Kills that blue glow.
01:24 Whenever you spray that, if it stops glowing, it means atropine was a reverse luminol. It's brilliant.
01:29 Remind me to patent it later. Big boots.
01:32 One of Max's captors must have stepped on this syringe.
01:35 Guys, we found boot prints likely belonging to our part. Size 13, wavy tread.
01:41 Hold on, Max. We're coming for you.
01:43 Yeah.
01:44 [Logo sound]
01:46 [Logo sound]
01:48 [Logo sound]
01:49 [BLANK_AUDIO]
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