2 men stranded in ocean for 'Shark Week' stunt

James Glancy and Paul De Gelder, both military veterans, spent 43 hours and 21 minutes in shark-infested waters for a simulated shipwreck airing on "Shark Week."
2:02 | 07/27/18

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Transcript for 2 men stranded in ocean for 'Shark Week' stunt
??? ??? ??? ??? We're back with at's being callek'st dang ever.twomerilitary men, in the slp, they didn't sleep. T.J. Holmes. The worst shark attack happened to, discovernted to do an experimentoee how long men uld survive. Not very long. Most dangerous experiment in Sha week history. A simulated strandino men in the open ocean without food and water. All trying to keep white-tippedarks at bay. So jtho did discovery fin Al with T experiment? O ex-military men James Paul, nine years ago, survived a that cos him an armed leg. Ias minutes from death and people were probably to think I'm a B crazy by dointh Reporter: Trest hospital is a hundredilesaway. This pair dives in. Comingace to face with army sharks. Finally after 43 hours and 21 MI made T ca. It was time to pull the men out of the ter. But yon't have be a military man to participate I shark week. Fied and afrdlave to go for 1 days viving exclusively on what the ocean provides. Two just fine. Dehydrated. Espeal who atck. Hundred miles away that ital, too,t's dicey. All ghoo lk T them. Ore te I to shark week on discovery Coming up it's our party I the park. Our audice is ready for fall out boy so are we Comin up, gma's summer

This transcript has been automatically generated and may not be 100% accurate.

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