"The Good Wife" is celebrating its 100th episode with a big bash. In "The Decision Tree," Florrick/Agos & Associates throws a rockin' holiday party. Its guests include Governor Peter Florrick (Chris Nothh), political strategist Donna Brazile (as herself) and drug kingpin Lemond Bishop (Mike Colter). That won't be awkward at all ...

Stockard Channing also returns as Veronica, Alicia's mother, and in the promo above she has quite the interaction with Jackie to get you ready for your own awkward family run-ins.

The 100th episode also brings back Nathan Lane as Clarke Hayden, John Noble as Matthew Ashbaugh and introduces Jordana Spiro as Det. Jenna Villette.

The official description:

“The Decision Tree” – Alicia is shocked to learn that a former client bequeathed her millions, but Lockhart/Gardner quickly contests the will on behalf of the deceased’s wife. Meanwhile, Diane asks Kalinda to look into Damian’s background. Also, Eli and Marilyn are concerned about Peter being seen with Alicia’s more disreputable clients at the Florrick/Agos holiday party, on the 100th episode of THE GOOD WIFE, at a special time, Sunday, Dec. 1 (9:30-10:30 PM, ET/CT, 9:00-10:00 PM, PT) on the CBS Television Network. Jordana Spiro guest stars as Detective Jenna Villette. Returning Guest Stars Include John Noble as Matthew Ashbaugh, Alicia’s former client; Stockard Channing as Veronica Loy, Alicia’s mother; Nathan Lane as Clarke Hayden; and Democratic Political Strategist Donna Brazile as herself.

"The Good Wife" 100th episode airs Sunday, Dec. 1 at 9:30 p.m. EST on CBS.

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  • "Ice Ice Baby"

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  • "The Next Day"

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  • "Hitting The Fan"

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  • "Outside The Bubble"

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  • "A Precious Commodity"

  • "A Precious Commodity"

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  • "The Bit Bucket"

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  • "Everything Is Ending"