In an exclusive interview with DailyMail.com, Josh Holt said he's 'grateful to God' he and Venezuelan wife Thamy Caleno, who was also jailed, survived their two-year ordeal.

Speaking from his home in Riverton, Utah, Josh tells how callous Venezuelan intelligence operatives roughed him up and terrified him with staged fake executions.

And the 26-year-old recalls how he navigated his way through a violent prison riot at the notorious El Helicoide prison in Caracas, was forced to defecate on newspaper in his cockroach infested cell, didn't shower for two years and changed his body clock to avoid contact with violent gangsters and killers during the day.