Tune in to the National Geographic channel at 9 p.m. tonight and you can see St. Petersburg resident Brenton Bruns II trying to assemble a solar panel, participate in a 'mock assault' in the pouring rain and help build a hidden castle located in the Blue Ridge Mountains. 

He's not crazy. He's a prepper.    

Bruns II, his father Brent Bruns (who you can see in the video above) and the rest of his family are preparing for the apocalypse and will be featured in the hit Nat Geo TV show 'Doomsday Preppers'. 

"We installed solar arrays, put up a windmill, showed just our interactions in prepping," Bruns II said in an interview with Patch. "However, I’m kind of a city guy so with zero handyman sills or survival skills." 

According to the show's description, "Doomsday Preppers explores the lives of otherwise ordinary Americans who are preparing for the end of the world as we know it."

The show describes the Bruns' episode as, "Businessman by day, prepper by night. Brent lives in fear of an electromagnetic pulse (EMP) that will make the world go dark, leaving his family of 12 with nothing. To prep for life after the EMP, Brent has constructed a medieval-style castle that will serve as the ultimate bug-out fortress."

The castle is located on top of a bomb shelter in the Blue Ridge Mountains of South Carolina. 

Bruns II, who owns the website I Love Downtown St. Petersburg, told Patch that his father became a doomsday prepper in 1999 on fears of the Y2K crash. 

"My dad thought the computers were all going down, so he bought a bomb shelter," he said. 

Reluctant at first, Bruns II said he and show producers were able to convince his father to reveal the long-hidden property by telling him he was going to be able to teach the masses his survival techniques. 

For Bruns II, however, teaching and preparing for the apocalypse were just secondary reasons to go to South Carolina to do the show. For him it was about connecting his family. 

In fact, for years the apocalypse seemed more likely to Bruns II than his family coming together. 

Bruns II, who is one of 10 children, said being closer to his family was his main reason for doing the show, which was filmed over the course of four, 12-hour days four months ago. 

"I think it's really going to bring our family together under one mission and I'm real excited," Bruns II said. 

In the last month, Bruns II said he's heard more from his family than in the past five years. 

"I'm just excited to see my dad calling (again)," he said. 

According to Bruns II, he might even get additional opportunities to get closer to the family as the network considers a spin-off show featuring the solely the Bruns family. 

If you watch:

• The show airs at 9 p.m. eastern standard time on Nat Geo. 
• Can't watch? You can follow online. Bruns II will be live-chatting the show on the 'Doomsday Preppers' and 'I Love Downtown St. Petersburg' Facebook pages.