LIVE SEASON PREMIERE - Grace contemplates having an affair with a married man. Elsewhere, Jack begins new career as a host of his new talk show "Jack Talk." Will gets some advice from Malcolm and tries to hide from Karen the fact that Stan is alive. Alec Baldwin and Eric Stoltz guest star, Shelly Morrison also stars.

Karen feels rattled by Stan's return and Will steps in to help her. Meanwhile Grace is labeled homophobic after her comments on Jack's talk show are misconstrued by gay men from all over New York.

Grace goes on a blind date and Jack gives Will swimming lessons.

Karen is forced to come to terms with her feelings for her presumed-dead husband when Jack gives his opinion on her men dilemma. Karen refuses to forgive Stan and wants nothing to do with him--until she learns how willingly Stan gives her up to Malcolm. Meanwhile, much to Grace's dismay, the new, altruistic Will begins doting on an elderly man whom he invites to their 10th Anniversary Game Night Spectacular.

The day before Will's charity auction and carnival, Jack meets and begins dating Baby Glenn.

While flying to London, Will and Grace notice that Grace's ex-husband Leo is on their flight.

Will is thrilled to help Jack look for another apartment when he decides on a whim to move, but after getting involved in an effort to help two gay penguins from being separated at the zoo, he begins having second thoughts about the idea of Jack moving. While attending Beverley's wife's memorial "celebration, " Karen and Grace experience a wardrobe malfunction, which they must try to conceal.

Grace asks Jack for help on how to deal with her domineering mother, and on his first day Will pursues a slumlord.

While spending the holidays at Will's mother Marilyn's house, Grace gets cozy with Will's brother and old flame Sam. Sam's adopted daughter finds a fan in Karen, who is intrigued by the little girl. Meanwhile, Jack helps Will's clearly gay ten-year-old nephew organize and perform a Christmas show, which Marilyn is thrilled about. Will is silently fuming, however, as Marilyn is much more tolerant of the young boy than she ever was of her own son.

The "Sound of Music Sing-Along" has come to town and no one is more excited than Grace. She plans for her and Will to attend the musical in character-like style by dressing up in costumes. Meanwhile, Karen and Jack try to flee when she gets in trouble with the theater's manager, who blocks off the exits, trapping everyone inside and forcing them to plot their escape.

Karen celebrates her birthday with some of New York's crème de la crème, but the festivities turn sour when she ends up crammed in the bathroom with Grace, Will and Jack, who have all embarrassed themselves at the party.

Grace is concerned and confused when Will so adamantly insists that she turn down her job offer from his former boss Margot, who has asked Grace to redecorate the law firm. When she takes the job after telling Will that she wouldn't, Grace learns some startling news that he has been hiding from her. Meanwhile, Jack discovers Karen's softer side when he finally sees what's inside the "forbidden room" at the Walker mansion.

Will and Grace are dreading a would-be dull dinner date with married friends Rob and Ellen, but the couple spices things up by making an important announcement. Their focus changes however when their server ends up being none other than Will's ex-boyfriend, Vince (guest star Bobby Cannavale). Elsewhere, after Jack decides he needs to spice up "JackTalk" by pulling an Oprah and helping a fan come out of the closet, he and Karen setup a bowling alley meeting with his fan when Karen is recruited to join a woman's league game as an emergency fill-in.

The gang travels to Los Angeles to accompany Elliot while he visits UCLA. Coincidently, Will runs into James who's in jeopardy of being deported. After spending a perfect weekend together, Grace makes a proposal to keep Will and James from having to say 'good-bye' to each other... ever again...

As Grace prepares for her green-card marriage to James (Taye Diggs), she frets that Karen is going too far by planning an overly lavish spectacle including a performance by the legendary Hall and Oates.

A nervous Grace finally decides that it is time to tell Leo that she is pregnant with his child, but she receives some unexpected news when she works up enough courage to actually go and meet him. Meanwhile, Will is settling in with James and Jack tries to document every second of Grace's pregnancy for his talk show. Karen meanwhile sulks alone, jealous over the good fortunes of her friends.

While Jack talks Will into going to a cowboy-themed gay bar to meet his new boyfriend, Grace's 'liberal guilt' leads her to hiring a minority as a second assistant, against Karens wishes.

A big corporation takes over OutTV and completely revamping Jack's talk-show and gives him a conservative co-host. Meanwhile, Karen decides she wants a baby of her own and offers to pay a make-up lady to carry one for her.

After losing his hosting job, Jack vows never to return to show business. Despite this, Karen decides to do whatever it takes to get Jack to audition for another job. Meanwhile, Grace goes with Will to a dinner at his parents' home, where Will's father gives Will's cherished baby blanket as a gift to Grace's unborn child.

Will grapples with the untimely death of his father after their last encounter; Grace begins to doubt her potential to be a good mother.

Will and Grace begin attending lamaze classes together, Grace starts to doubt whether Will is up for raising a child with her when and Vince take another chance at having a relationship. Meanwhile, Karen looks to Jack for comfort while her marriage is on the rocks, but finds that Jack is a little preoccupied with his new television show.

Vince's plans to move into a brownstone with Will do not include Grace; Meanwhile, Karen shocks everyone when she announces that she has a sister, Gin, who was injured as a child during a game of Twister and Jack's new show debuts.

The culmination of eight seasons ends tonight with a one-hour series finale - will Will and Grace raise a child together and find ultimate happiness? Will Jack find anyone that loves him as much as he loves himself? Will Karen find true happiness with the absence of Stan? All these questions and more will be answered as this groundbreaking series concludes eight amazing seasons.