It’s eviction day in the Big Brother house, and last night’s events were nothing short of explosive. Isaiah "Zae" Frederich, the ever-charming social powerhouse, discovered that Rachel Reilly had been orchestrating a master plan to get him out of the game. Buckle up, because here’s how it all unfolded.

If Big Brother fans know anything, it's that no one comes between Rachel Reilly and her man, Brendon Villegas. The two met as houseguests on Big Brother 12, immediately connecting over their mutual passion for science,

"Big Brother" Season 27 contestants better grab a life vest, because star Rachel Reilly is checking in as the 17th houseguest

Big Brother 27 mystery houseguest Rachel Reilly is married to Brendon Villegas. They have two children - daughter Adora Borealis Villegas and son Adler Mateo.

T hursday's season premiere of Big Brother 27 ended with the shocking return of, as a fellow houseguest proclaimed, one of the show's "Mt. Rushmore" stars: Rachel Reilly, who returned to the game 14 years after winning Big Brother 13 in 2011.

Life vest sales soar!Grab a life vest, floaters, because look who just resurfaced back in the Big Brother house.Rachel Reilly (or Rachel Reilly Villegas, if you’re nasty) was revealed on Thursday’s Big Brother season 27 premiere as the mystery houseguest.

Before the season 27 premiere, many fans speculated that the mystery houseguest could be anyone from Celebrity Big Brother UK star JoJo Siwa to a Big Brother newcomer like Tom Sandoval from Vanderpump Rules. Viewers even hypothesized that this season, the host herself, Julie Chen Moonves, would join the cast as a contestant.

F loaters, grab a life vest! Rachel Reilly made her triumphant return to Big Brother during Thursday's Season 27 premiere. Now, we'll see whether she slides her way into a powerhouse alliance or winds up as public enemy number one.