It's the first show of a new BIG BROTHER season, and this year's theme is Do Not Assume.

Michael decides to reveal to the Four Horsemen that Jennifer, a.k.a. Nakomis, is his half-sister.

The noose continues to tighten around Mike's neck as Scott wins the Power of the Veto in the "Flaringo" ring toss game.

Despite his best efforts to plant seeds of doubt about the power of the Scott and Jase alliance, a houseguest gets evicted.

Nomination day arrives, and Head of Household Marvin begins his deliberations.

In a riveting competition called "Snag the Veto", Jase emerges victorious over a hard-working Lori to grab the Power of Veto.

Jase's decision to use the Golden Power of Veto on Holly proves to be a good thing for Marvin and the rest of the Four Horsemen.

As soon as Drew wins Head of Household, he finds himself being barraged by advice, counsel, and commentary by every single player in the game.

Nakomis (Jennifer) wins the Power of Veto, and she removes herself from the chopping block.

After being spied on, Holly is evicted by a near-unanimous vote of 7 to 1.

The new Head of Household, Diane, attempts to get rid of a power player in the house by nominating Jase and Scott for eviction.

Jase and Scott compete for the power of veto to try and get themselves off the block.

Fourth live eviction.

Following Scott's eviction, the "Twin Twist" was revealed to the HouseGuests and Natalie officially entered the game. Nakomis wins the head of household competition. While planning for nominations, Nakomis realizes that her alliance now has the numbers to complete the "Six Finger Plan".

Drew wins Power of Veto completing the Six Finger Plan; Jase is nominated for eviction.

Thinking he saved himself, Jase gets bounced by a near-unanimous vote.

The united alliance that evicted Jase from the House appears to be crumbling.

Will and Marvin, nominated for eviction, compete for the Power of Veto.

Drama ensues during the eviction ceremony.

The winner of Big Brother 5 is selected.