 Let me know when you leave surface, reach bottom. My name is Humberto Santiago. I am 40 years old, and I am from Toa Baja, Puerto Rico. And my job here on this mission is a diving supervisor. You just jump in, and you just feel invigorated. He calls it his saltwater therapy. It's something that I love to do. And there's that saying, if you're afraid of dying, you're never going to really fully live, right? Green diver, move back to your tent straight up and down. Humberto was 11 when he got his dive certification. And he's a competitive spear fisherman. The ocean, yeah, it's his happy place. When I'm free diving, and I jump in, everything, all my troubles, anything could be happening in my life. When I'm in the water, there's nothing but the water. He was fortunate enough to turn his passion into a profession. So when I initially went to join the Army, because I already fluent in English and Spanish, I wanted to be a linguist. As I'm in there, I saw the diver thing. I was like, oh, no. I don't want to be a linguist, I want to be a diver. Santiago was the only Army student out of 10 to graduate dive school. He would go on to be an instructor at the Dive School in Panama City, Florida before he joined the seventh dive team in Hawaii. The soldiers in Hawaii on the seventh, they get the opportunity to travel the world, right? See different cultures. I always tell them, these are experiences that they'll be able to talk about later. We're going to go to his tracking suit. Just stay where you are, get ready to travel. Both divers get ready to travel. Yeah, Staff Sergeant Santiago was one of my phase two instructors. I didn't like him at the time of dive school, because he was always a pain to deal with. I never understood it. And then I got to the unit, he was a totally different person, completely different animal. Super helpful, incredibly wise. Staff Sergeant Santiago is amazing. He actually was one of my dive school instructors. I was thinking he was picking on me and being mean to me. But he was doing it for a reason. He was doing it because he wanted to see if this guy is going to be an asset to my team or if he's not. And if he's not, then I don't want him to be a diver. The soldiers that I train to send off to the units, I always, towards the end of the course, I'll tell them, hey, let's see you guys again, you know? And everything that happened in school and nothing's ever personal. If this is all, there's a purpose behind everything. Divers, understand job? Yeah. You want to make this dive? Yeah. You know your appease. Our job is innately dangerous. It is underwater. It is not an environment that we are adept to survive in. There's only so much that the supervisor can do. They have to take care of themselves down there. It doesn't matter what I tell them on the surface. It doesn't matter. You're pretty much on your own underwater. Grab a line full of signals. Move back to your tank set up and down. I understand. So with these dives, we're doing a planned surface of compression. We're emitting required decompression in the water and opting it to do it inside the chamber. So there's only a limited amount of time, as you guys observe, right? Once they start coming up, it's a pretty fast move and everybody's moving pretty quick. The seventh dive team partners with the Defense POWMIA Accounting Agency. This trip, they're searching for missing crew members from a helicopter that crashed off the coast of Nha Trong, Vietnam, in 1971. This mission is uniquely special for him. It brought me back to where my dad served. He served in Vietnam. And so I was here and kind of like, I was here. He was here. He was pretty close to where we are right now. To me, it's very important because I want to help fulfill our nation's promise. One time, I looked down where the rinsing stations were and I saw the people dredging. These are like young people. They weren't even born when these people died. And they're here trying to find them. They're brothers. You join the military and it's a brotherhood. It doesn't matter what service you go. There's a promise and we're going to find you. Santiago has found the perfect marriage of passion and purpose. It's a career of service that also fuels his soul. It's something that I love to do. The ocean has this energy that I just get from it. It's just peaceful. The ocean is a peaceful place. It's not a place for everyone, but it's a place for me.