The season finale of "Big Brother" is upon us, and Dan, Ian and Danielle are the final three houseguests vying for the $500,000 prize.

Sunday night's episode left our trio hanging (literally) in the first part of the final Head of Household competition -- one of three contests to determine the last HOH, and the person who will decide which of their competitors to take into the final two with them to face the jury.

In our exclusive preview clip, we see that Dan is still scheming to make sure he has all his bases covered and that both of his rivals are prepared to take him into the finals with them -- but will his plotting pay off? And if it does, will his evicted cohorts award him the prize money after he stabbed so many of them in the back? We'll find out tonight.

The 90-minute "Big Brother" season finale airs Wednesday, September 19 at 9:30 p.m. ET on CBS.

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  • Survivor: Philippines Cast

    Jeff Probst

  • Survivor: Philippines Cast

    Lisa Whelchel, a former TV teen star currently living in Dallas, Texas.

  • Survivor: Philippines Cast

    Lisa Whelchel, a former TV teen star currently living in Dallas, Texas.

  • Survivor: Philippines Cast

    Roberta "RC" Saint-Amour, an investment banker currently living in New York.

  • Survivor: Philippines Cast

    Roberta "RC" Saint-Amour, an investment banker currently living in New York.

  • Survivor: Philippines Cast

    Zane Knight, a tire repair man currently living in Danville, VA.

  • Survivor: Philippines Cast

    Zane Knight, a tire repair man currently living in Danville, VA.

  • Survivor: Philippines Cast

    Malcolm Freberg, a bartender currently living in Hermosa Beach, CA.

  • Survivor: Philippines Cast

    Malcolm Freberg, a bartender currently living in Hermosa Beach, CA.

  • Survivor: Philippines Cast

    Jeff Kent, a retired Major League Baseball player currently living in Austin, Texas.

  • Survivor: Philippines Cast

    Jeff Kent, a retired Major League Baseball player currently living in Austin, Texas.

  • Survivor: Philippines Cast

    Denise Stapley, a sex therapist currently living in Cedar Rapids, Iowa.

  • Survivor: Philippines Cast

    Denise Stapley, a sex therapist currently living in Cedar Rapids, Iowa.

  • Survivor: Philippines Cast

    Dana Lambert, a cosmetologist currently living in Winston-Salem, NC.

  • Survivor: Philippines Cast

    Dana Lambert, a cosmetologist currently living in Winston-Salem, NC.

  • Survivor: Philippines Cast

    Angie Layton, a student currently living in Provo, Utah.

  • Survivor: Philippines Cast

  • Survivor: Philippines Cast

    Abi-Maria Gomes, a business student currently living in Los Angeles.

  • Survivor: Philippines Cast

    Abi-Maria Gomes, a business student currently living in Los Angeles.

  • Survivor: Philippines Cast

    Artis Silvester, a computer engineer currently living in Terry Town, LA.

  • Survivor: Philippines Cast

    Artis Silvester, a computer engineer currently living in Terry Town, LA.

  • Survivor: Philippines Cast

  • Survivor: Philippines Cast

    Carter Williams, a track coach currently living in Shawnee, KS.

  • Survivor: Philippines Cast

    Katie Hanson, former Miss Delaware, currently living in Newark, Del.

  • Survivor: Philippines Cast

    Katie Hanson, former Miss Delaware, currently living in Newark, Del.

  • Survivor: Philippines Cast

    Roxanne "Roxy" Morris, a seminary student currently living in Brooklyn, NY.

  • Survivor: Philippines Cast

    Roxanne "Roxy" Morris, a seminary student currently living in Brooklyn, NY.

  • Survivor: Philippines Cast

    Peter "Pete" Yurkowski, an engineering graduate currently living in Holmdel, NJ.

  • Survivor: Philippines Cast

    Peter "Pete" Yurkowski, an engineering graduate currently living in Holmdel, NJ.

  • Survivor: Philippines Cast

    Sarah Dawson, an insurance sales woman currently living in Silver Spring, MD.

  • Survivor: Philippines Cast

    Sarah Dawson, an insurance sales woman currently living in Silver Spring, MD.

  • Survivor: Philippines Cast

    The "Survivor" cast.

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