:12:00
I'm just gonna go visit with a fellow scientist.
:12:09
- Hi.
- Hi.
:12:13
I'm Tyler McAlister. I'm the first scout.
:12:16
One second.
:12:20
- Do you mind if I...
- Sorry. Let me just move this for you.
:12:32
- Dr. Jennings.
- It's good to meet you.
:12:34
And this is Alex Kim our cameraman.
:12:36
Oh, yeah. I've seen your work.
:12:38
Heard a lot about you, too.
:12:39
So, it's unusual for a rebreather.
:12:42
- Who modified it?
- That would be my brother Jack.
:12:44
- Really?
- Yep.
:12:47
I did all the reprogramming, though.
:12:53
Why the canister?
:12:54
We're using lithium hydroxide
to filter out the CO2.
:12:58
It's a little dangerous,
but it's much more effective than calcium.
:13:02
Hope you got a redundancy for this Meg.
:13:04
There's actually a triple redundancy.
It's the backup, a primary, and a HUD.
:13:08
So you can stay submerged for what,
18, 20 hours?
:13:12
24.
:13:14
Kate. Alex. This is Jack McAlister.
:13:18
- Dr. Jennings.
- It's a pleasure.
:13:20
We read about some of
your Yucatan expeditions. Pretty amazing.
:13:23
Thank you, thank you.
:13:25
I understand you have a great interest
in cave biology, Mr. McAllister.
:13:28
I'm starting to.
:13:30
- And it's just Jack, please.
- Kathryn.
:13:33
- Perhaps you want to see some samples?
- Yeah, sure.
:13:36
Hey, bro.
Double-check all the rebreathers, will you?
:13:39
Yeah. One in 14.
:13:41
One in 14?
:13:43
It's the number of cave divers that die each year.
:13:50
What's this?
:13:51
It's all that's left of some poor guy
they found in the mouth of the cave.