Four stowaways secretly tucked away in the house will kick off the two-night premiere event. Four competitions, three twists, two-nights and one Houseguest will be going home before the summer has barely even begun. This summer is guaranteed to be a bumpy ride.

Tonight, one team must compete against each other, the loser will be the first House Guest sent packing, leaving the reaming three to decide which one of them will be the first Head Of Household of the Summer. Plus, two House Guests will be nominated for eviction.

Tonight, a brand new competition will change the game once again. How will everyone react when the new twist is unleashed? Plus, with the veterans and newbies at war, who will strike next?

Tonight, it's the first Power of Veto competition of the Summer. Will Paulie, Jozea or Paul be saved from the block?

Who will be evicted from the Big Brother House? Plus the power will once again be up for grabs and another game changing twist will be announced!

Will Da'Vonne's game blow up in her face or will the house finally send Tiffany packing?

The first five evicted house guests compete in "Battle Back" competitions; the last evictee standing will return to the game for another chance at the $500,000 prize.

The battle for the final HoH begins. Plus the Final Three celebrate the Summer.

Who will become the final HoH and who will make it to the final 2? Thirteen houseguests have departed and tonight, nine will have to make a difficult decision. Who will be crowned winner of Big Brother and walk away with the half million dollar prize, and who did America vote as their favorite houseguest?