In the fourth season of the hit sitcom, Grace (Debra Messing) romances Nathan (Woody Harrelson); Will (Eric McCormack) tries to get his parents back together; Jack (Sean Hayes) strengthens ties with his estranged son; and the gang gets an emotional workout during a dysfunctional Thanksgiving. Guest stars include Matt Damon, Suzanne Pleshette, Michael Douglas, Glenn Close, Rosie O'Donnell and Parker Posey.

21. Wedding Balls - Will expects two friends to arrive in New York to plan a wedding, but when the bride-to-be falls ill, he asks a willing Grace to work with the clueless groom to work out the details but she gets a little too involved in the dreamy details and fancies herself a bride instead. Meanwhile, Will and Karen get chummy over a steamy potboiler book that they're both reading which leaves a jealous Jack fuming as the odd man out in the book-of-the-month club. 3.5 stars.

22. Fagel Attraction - After his laptop computer is stolen, Will meets a sociable police detective who takes a special interest in his case as they go undercover but Will doesn't know that the gumshoe is secretly participating in Jack's therapy group for gays. Elsewhere, Grace is again hassled by her psycho neighbor Val who "opens" a rival design business and prospers by stealing Grace's ideas. 4 stars

23. Hocus Focus - After Will wins a portrait session at a charity auction, he takes Grace to pose for a notoriously eccentric celebrity photographer but the unfocused shooter's bizarre methods ultimately produce a funky image that flatters Grace and frightens Will. Meanwhile, Jack's back with another performance act, and this time he employs magic tricks but regrets using Karen as his assistant. 3.5 stars.

24. A Buncha White Chicks Sittin' Around Talkin' - When Will hears his "biological clock" ticking, he shocks Grace by asking her to become the mother of his baby but when they meet with a therapist, Grace reveals that she's uneasy about the necessary sacrifices and makes a startling revelation. Inspired by Will's "seize-the-day" quest, Jack and Karen are also moved to pursue their goals: for him, it's auditioning for a legitimate Broadway production; for her, it's visiting her imprisoned husband for a dreaded conjugal visit. 3.5 stars.

25. A.I.: Artificial Insemination - After Will and Grace decide to have a baby together, obstacles pile up before them, including a missing specimen sample and bungled insemination efforts that have them teetering between artificial and natural means all leading to mis-conceptions. Meanwhile, when Jack considers giving up his show-business aspirations, until he gets some career advice from a "divine" entity his idol, Cher. Likewise, married Karen is sorely tempted by the romantic tickling of a rich and natty gentleman. 3.5 stars.

Disc 4: 3.6 stars
Season 4 (Disc 1-4): 3.60 stars
Collection (Season 1-4): 3.61 stars