Big Brother Big Brother 18: Episode Guide & Ratings

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!

Who will become the new HoH, and which two Houseguests will be nominated for eviction? Plus, the BB Roadkill is back, and the winner will secretly pick a third nominee!

Tonight, the Power Of Veto is on the line. Will the backdoor plan send Victor to the block? Or will a new target emerge?

Bronte, Victor or Tiffany face the threat of eviction and entry into the "Battle Back" twist, and a new Head of Household is crowned.

Tonight, Bridgette must nominate two people for eviction. Plus, the BB RV is pulling up to make someone roadkill. Who will be the third nominee? Also, love is in the air as showmances blossom.

Tonight, the Power Of Veto is up for grabs, will one of the nominees be saved?

Will Frank successfully send Tiffany packing or will Da'Vonne lead the charge to take out a different nominee? Also a new HoH will be crowned!

Tonight, with the house's plan to take out Frank derailed, who will go on the block? Who will win the Roadkill? And who will lose their mind?

Who will win the Power of Veto and will it be used to save Corey, Tiffany or Natalie from eviction?

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.

Tonight, with the return of Victor and the end of the team twist and BB Roadkill, the HoH competition has never been more important. Who will rise to power, and who will be nominated for eviction?

Who will win the Power Of Veto? And will it be used to save Bridgette or Frank from eviction?

Frank and Bridgette are on the ropes but the secret room just may change the course of the game on Big Brother.

Who will rise to power? And who will be nominated? Plus, who will receive the first "Care Package" from America?

Tonight, the Power Of Veto is up for grabs, will it save Paulie or Bridgette from eviction? Plus, as the Summer heats up, tempers are on the rise.

Tonight, Da'Vonne or Bridgette will be evicted. Does either hold the round trip ticket or will one of them become the first member of the jury? Plus, the battle for HoH begins on Big Brother.

Tonight, who will rise to power, who will emerge as the next target, and how will America's care package shake up the game?

Tonight the Power Of Veto is on the line, will it save Zakiyah or Michelle?

Tonight either Zakiyah or Michelle will be evicted, but they won't be alone as it's double eviction night!

Tonight, see the explosive series of events that went down just 24 hours leading up to the double eviction. Plus, who will become the next HoH, and who will be on the chopping block?

Tonight, will the Power Of Veto save Paulie or Corey from the block? Plus, it's the night you've been waiting all summer for, Zingbot is back!

Who will be evicted from the Big Brother house, Paulie or Corey and do either of them possess a round trip ticket to get back into the game?

A county fair-themed episode includes competitions for the houseguests to win prizes, perks and power. Also: Reggae artist Ziggy Marley makes a surprise appearance and performs "Weekend's Long."

With the power up for grabs, the Houseguests enter the dreaded black box. Will they survive the scariest HoH competition yet? Plus, who will get America's latest care package?

Tonight, the nominations ignite a war of words in the house. Plus the Power Of Veto is on the line.

Tonight, either Victor or Corey will be evicted and join the other jurors in an epic battle to return to the game.

Which jury member will make it back into the Big Brother house, and which current Houseguest will win HoH? Plus, America awards its final care package of the summer.

Tonight, will the Power Of Veto save Michelle or Paul? Plus, it's Christmas in August in the Big Brother House.

Either Michelle or Paul will head to jury, plus will Corey cash in on the BB bribe and the battle for power begins again.

Which houseguest will "Egg-cel" to become the new HoH and with three duos left in the game, which pair will end up on the block?

Tonight, can the Power Of Veto save James or Natalie? Plus, will being on the block together tear them apart?

Tonight, either James or Natalie will leave the game but will they be torn apart before a single vote is cast? Plus, Michelle arrives at the jury house and BB favorites, Jeff and Jordan are back.

With only five remaining, a slippery battle for HoH concludes. Who will slide into power and who will be nominated for eviction? Plus, will the Final Four remain loyal to each other or will the season of back-stabs and betrayal continue?

Tonight, will a super-powered Veto save Paul or Victor? Plus who will be evicted and who will become the new HoH? Also, Season 16 winner Derrick weighs in on the Final Five.

It's the final and most important veto of the summer. Who will secure their safety and who will be evicted. Plus, emotions explode at the jury house.

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?