12 strangers will move into the Big Brother house and learn that they will be 'kickin it old school' this summer, high school to be exact. The House Guests will be shocked to learn that they will be playing the game in one of four familiar high school cliques - popular, athletes, brainiacs and off beats.

Jessie from Season 10, the current HoH returns and the other houseguests do all they can to avoid a nomination. The stakes are raised when cliques are punished for losing the food competition.

The mood in the house quickly turns sour as the houseguests compete for the first power of veto. Lydia tries to ally herself with the athletes and Ronnie walks a fine line.

Lydia causes a ruckus, while Russell does all he can to make sure Braden goes home. Who will be evicted from the Big Brother house? Also, the houseguests compete to win HoH by predicting how fans voted in an online poll.

As the HoH, Ronnie strategically decides which houseguests must fight for the power of veto. The houseguests compete for the chance to watch a screeing of The Ugly Truth.

Russell shows his volatile side before the power of veto competition. Jeff and Laura desperately need to stay in the house.

Ronnie's lies catch up to him and a second houseguest is evicted from the Big Brother house. Plus, a new HoH is crowned.

Ronnie tries to make nice in order to save himself from being put up for elimination. Surprising romances develops in the house.

The houseguests experience a pig's life in the power of veto competition. A few waver between kicking Ronnie out.

Showmances begin to blossom and another houseguest goes home in a heated eviction. Also, the houseguests face off in their first endurance HoH competition.

Russell and Jeff come to an agreement about who should get HoH. Russell proves to be a man of his word as he announces his nominations for eviction.

The power of veto competition is a gamble and the alliances campaign in their best interest. Chima upsets Russell and Michele proves to be the swing vote.

Russell and Chima have a throwdown and another houseguest is eliminated. Also, the winner of the coup d'etat is revealed and the houseguests compete for HoH based on America's advice.

Russell tries his best to make nice with Chima after she wins HoH. In a luxury challenge the houseguests are split into two teams and given the chance to win great prizes.

Russell and Chima continue to fight and one of the houseguests has to make a difficult decision. The PoV competition is more important than ever as the girls side with each other.

The power of veto competition is a gamble and the alliances campaign in their best interest. Chima upsets Russell and Michele proves to be the swing vote.

Chima, Lydia and Natalie mourn Jessie's eviction, while Michele puts up her two nominees. Also, the houseguests compete in this week's have/have not competition.

Chima's actions lead her to an untimely eviction. After a new HoH competition to reset the game, a few houseguests have a difficult time accepting the new power shift.

In the fast-paced hour, the houseguests compete for veto, evict another houseguest and battle it out for HoH, all live. Also, secrets about Jessie's actions when he was in the house turn some of his strongest supporters against him.

A new HoH is crowned and with Lydia's eviction, the houseguests start to reconsider their alliances. Russell wants to secure his place in the final four but his ego makes the others want him out.

A past houseguest helps out in the crucial PoV competition. As the house pairs up, Jeff may have to watch his back.

Russell pushes Jordan to her limit, and the houseguests decide whether to send him or Natalie to the jury house. Also, the HoH competition may be chocolatey, but it's anything but sweet.

After winning HoH, Kevin is faced with a difficult decision. Natalie guns for Michele to be evicted.

The future of the remaining houseguests rests in the next PoV competition. The unthinkable may happen and long-standing alliances may be broken up.

Jeff fights to stay in the house, but will efforts pay off? Either he or Jordan will be evicted from the Big Brother house. Also, three out of the final four houseguests compete for HoH.

As tensions grow in the house Natalie distances herself from the other houseguests with her lies. Alliances are broken and it's every player for themselves.

The houseguests compete for the final Power of Veto of the season and one more is evicted. Also, the final three houseguests begin part one of the last HoH competition.

The houseguests compete in part two of the final HoH competition, while Julie reveals some of the final twists of the season. Also, four of the best houseguests from Big Brother history return to weigh in on this season's final three.

The final three reminisce about their experiences in the Big Brother house. Kevin, Natalie and Jordan enjoy a moment together before mentally preparing to duke it out for the win.

In the first ever 2-hour season finale, one houseguest is crowned the winner and awarded $500,000, and all the houseguests are reunited for the first time. Also, Julie reveals which houseguest America chose as their favorite and awards the lucky juror $25,000.

The summer reality hit BIG BROTHER will debut its 22nd season with an All-Star cast who have one thing in common - they all have something to prove. The two-hour live move-in premiere event.

Cody nominates two house guests for eviction. Plus, the reveal on the first twist of the summer: the safety suite! Inside the safety suite is something every single house guest will want.

Tonight, it's the first Power of Veto competition of the summer. Will Keesha or Kevin be saved from the chopping block, or is there a bigger target waiting in the wings?

Tonight, a house guest is evicted; the remaining house guests compete for next head of household.

Memphis must nominate two houseguests for eviction. Plus, the safety suite is back open. Who will swipe in to try and guarantee they stay in?

Tonight, can the Power of Veto save David or Nicole A.? Plus, is there already cracks in Memphis' alliance?

Who will be evicted from the Big Brother house, David or Nicole A.? Find out tonight on Big Brother All-Stars!

Tonight, Janelle and Nicole's feud escalates. Plus, It's the final "Safety Suite" competition. Who will become safe? and who will be nominated for eviction?

Who will win the Power of Veto? And will it be used to save either Janelle or Kaysar from the block?

Which old school legend will be evicted from the Big Brother house, Kaysar or Janelle?

With the "Head of Household" back up for grabs, who will roll into power? and which house guest will be targeted next for eviction?

Who will win a brutal endurance competition for the Power of Veto? And will either Kaysar or Kevin be saved?

Who will be evicted from the Big Brother house, Christmas or Kaysar?

Tonight, as alliances shatter and houseguests scatter, who will make Christmas' naughty list and be nominated for eviction?

Tonight, who will win the power of veto? And will it be used to save Da'Vonne or Bayleigh from the block? Plus, an unexpected series of events unfolds that no one saw coming.

Tonight, either Da'Vonne or Bayleigh will be sent packing, but not before a showdown sends shock waves through the house. Plus, an epic endurance competition begins.

With the power back up for grabs, the houseguests were hanging on for dear life. The first three will be "have-nots," and the last player standing will be the new Head Of Household. Who will win and who will be nominated? Find out now!

What will Dani do when the Disruptor Power is unleashed? Plus, who will win the veto?

Who will be evicted from the Big Brother house, Tyler or Ian?

With only 10 remaining in the battle for a half million dollars, a puzzling HOH competition began. Who will solve their way to power, and which houseguest will end up on the chopping block? Plus a devious plot was hatched prior to the eviction, watch it unfold and see the repercussions shake up the house.

Who will win the Power of Veto? And will it be used to save either Kevin or Da'Vonne from eviction? Plus, Zingbot is back and ready to roast the All-Stars.

Who will be the next All-Star sent to the Jury House? Kevin or Da'Vonne? Plus, a B.B. legend returns to the game to kick off a new twist.

Tonight, who will score big in the Head of Household competition and which two Houseguests will face the chopping block.

Will the power of Veto save one of the nominees? Plus what prizes lay hidden in OTEV's Party Pad.

Who will be evicted from the Big Brother house, Kevin or David? But that's only the beginning, because for the first time in B.B. history, it's going to be a Triple Eviction.

Witness all the crazy strategy you didn't see that shaped the shocking triple eviction! Plus with only six remaining a new HOH will be crowned, and two houseguests will be nominated for eviction.

Who will win the Power of Veto? And will it be used to save either Tyler or Christmas from the chopping block?

Twas the night before eviction, and this is no lie, someone's game is over, either Christmas or Tyler.

With only 5 All Stars remaining, a pumpkin patch battle began. Who will carve out a victory? And which houseguest will jack-o'-land on the block?

Who will win the Power of Veto? And will it be used to save either Christmas or Memphis? Plus, BB Comics are back!

Who will be evicted from the Big Brother house, Christmas or Memphis?

Tonight, who will checkmate their way to the final three? Plus, half of the final four will end up on the chopping block.

Who will win the final and most important Veto of the season, and punch their ticket to the B.B. finale?

Who will be the last All-Star evicted before the finale, Nicole or Christmas?

With the final three set, Nicole, Cody and Enzo will look back at the All-Star season!

Who will win Part One of the final three-part Head of Household competition?

The live two-hour season finale of "Big Brother: All-Stars". Find out who becomes the final Head of Household, setting the stage for the last eviction of the season. The jury will then cast their votes live for the winner. Then, all 16 Houseguests will reunite, America's favorite Houseguest will be revealed, and either Enzo, Cody, or Nicole will be crowned the winner of "Big Brother: All-Stars" and walk away with the $500,000 grand prize.