The competition kicks off with three challenges that will yield a game-changing power—and two unprecedented punishments.

The two-night premiere event continues with the first HoH competition of the summer; who will grab all the power and who will be nominated for eviction?

A tech-themed twist, the "BB App Store," is unveiled. America has the opportunity to get the Houseguests trending, resulting in power apps or punishments that could crash their game.

Will the Power of Veto save either Sam or Steve, or will the new "bonus life" power change the game?

Find out who will be the first person (or robot) evicted from the house, Sam or Steve.

Find out who is the top trending house guest and what power app will they choose? Plus who will Kaitlyn nominate for eviction?

Houseguests compete to win the Power of Veto. During the Veto meeting, the winner of the competition can keep nominations the same, or save someone from eviction for the week. Hosted by Julie Chen.

Who will be evicted from the Big Brother house? Winston... or Swaggy C?

Who will win the final three-part Head of Household competition? And which Houseguest will go on to be crowned the winner of Big Brother 20 and take home the half-million dollars?