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.

The winner of Big Brother 5 is selected.