Who’s coming back into the Big Brother house?

While the remaining houseguests have been scheming inside the house, CBS’ summer reality show has been holding a side competition, Big Brother Battle Back, with the first five evictees for a chance to return to the game and shake up the house.

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ET has the exclusive first look at the very first (and incredibly dramatic) Battle Back competition with Glenn,the season’s first evicted houseguest, and the self-proclaimed “messiah” Jozea, who was kicked out the door second. Whoever wins this battle moves on to challenge the next evictee.

For Glenn, the 50-year-old Bronx native, it would be sweet redemption to make it back into the game. After all, he barely lasted 24 hours in the Big Brother house!

But once Glenn realizes who he’s going up against in the Battle Back challenge, which happens to be a tweaked version of a Head of Household competition, his reaction is priceless.

“I. Am. Here. To Play,” Jozea declares. “I mean, I’m the messiah. He can walk on water, I can walk on logs.”

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From the start, Jozea struggles to successfully get through the logs, falling at least twice (and possibly more) as he rushes to try and beat his challenger. Meanwhile, Glenn takes the long-game approach.

Then, there comes a moment when Glenn decides to take a big risk with the special “poison berry” power once he sees Jozea starting to take control of the game. “That would be devastating,” Jozea says of the situation at hand. Will Glenn be successful?

The special episode of Big Brother airs Friday at 8 p.m. ET/PT on CBS.