NBC Comedy Vault

Will and Grace decide to intervene when they discover Grace's niece is dating a bisexual man; Jack gets permission from his husband to sleep with his celebrity hall pass; Karen struggles to adapt when her assistant books them on an economy flight.

Marilyn goes behind Grace's back to fix her up with a beagle-breeding couple interested in adopting Grace's baby; Will helps Karen deal with a PR nightmare; Jack and Estefan go to extreme lengths to get rid of a mouse.

Grace and her neighbor, James, give their relationship one more shot, but when James invites Grace to his job at the aquarium, she endangers his job and a species; Jack takes Will to an unexpected place to blow off steam -- church.

Karen introduces Will and Grace to the new love of her life, Phil, but Will and Grace become suspicious that he has sinister intentions; when Miss Coco Peru tells Jack that he's closing down his bar, Estefan encourages Jack to become its new owner.

Will and Grace race to save Karen when they think she is in danger after her new boyfriend takes her to a cabin in the woods; Jack makes up a story to a snobby reporter to keep his new bar relevant after its previous owner steps down.

Jack helps Karen sneak into the manse to retrieve her ring, but they're shocked to find it on the hand of Stan's new girlfriend; while hosting Will's surrogate for the weekend, Will and Grace become the old folks they swore they'd never become.

Will ropes Dr. DiLorenzo into going on a fake date so he can spy on his surrogate; Grace struggles with popping her gender reveal balloon; Karen is torn between celebrating her team's championship and helping Jack with his Broadway audition.

Will claims living with Grace is like Ricky living with Lucy; when Karen and Jack hear this, they each claim that they are the Lucy of the group; Grace, Karen and Jack each imagine themselves as Lucy, with Will as the Ricky to all of them.

Karen celebrates her baseball team's championship; Will and Grace go to an open house, which leads to a conversation about their future living arrangement; Jack has to decide if he wants to stay in the city to pursue his dreams.

Will is determined to not reminisce about his life in the city or his ex; Grace has false alarms of going into labor; Karen attempts to get closure with her ex-husband; Jack's dream of taking a bow on a Broadway stage becomes a very real possibility.

When Grace (Debra Messing) gets a marriage proposal, Will (Eric McCormack) risks their friendship by telling her what he thinks.

Will mulls asking Grace to share his place when she considers renting across town.

Will (Eric McCormack) faces the big issues when Grace (Debra Messing) moves in and wants to knock down the bathroom walls.

Grace's (Debra Messing) decorating job on Harlin's (Gary Grubbs) place embarrasses Will (Eric McCormack), who then makes an even bigger mess.

Jack and Karen (Sean Hayes, Megan Mullally) head out to party, while Will and Grace (Eric McCormack, Debra Messing) go trick-or-treating with Harlan's (Gary Grubbs) kids.

Grace worries that Will is keeping secrets from her after Jack discloses Will's past affair with a client.

Grace (Debra Messing) blames Will (Eric McCormack) for her lack of a social life and decides that they can no longer have fun.

Grace (Debra Messing) seeks Will's (Eric McCormack) advice on buying a studio, then sets out to prove she can make the deal.

Will (Eric McCormack) develops a dog obsession after Grace (Debra Messing) brings home a puppy, forcing her to take action.

Will and Grace (Eric McCormack, Debra Messing) eavesdrop on the couple downstairs (guest stars Tom Sullivan, Corinne Bohrer), who are involved in a marital conflict.

Jack and Grace (Sean Hayes, Debra Messing) surprise Will (Eric McCormack) on his birthday with tickets to an ice-skating show with Rudy Galindo (as himself). With Megan Mullally.

Will hires a cleaning lady to help Grace with her preparations for an upcoming decorators' contest; Jack dates a guy he meets at the bookstore.

Grace (Debra Messing) gets a visit from her mother (guest star Debbie Reynolds), who wreaks havoc by suggesting that she marry Will (Eric McCormack).

Will's estranged, older brother turns up at Jack's birthday party; Karen flashes her platinum card for Jack.

Grace (Debra Messing) tells Will (Eric McCormack) about her romance with his brother (guest star John Slattery); Karen (Megan Mullally) helps Jack (Sean Hayes) deal with turning 30.

Will and Grace (Eric McCormack, Debra Messing) compete for the affections of their new neighbor (guest star David Newsom). With Megan Mullally.

Grace (Debra Messing) romances an old flame (guest star David Sutcliffe) while in Vermont and tries to hide the fling from Will (Eric McCormack). Tom Bosley also guest stars.

Will uses his new neighbor, Val, for his plans while Grace works; Jack is sentenced to pick up trash.

Will learns a lesson about prejudice from Jack; Karen tells Grace about her rocky marriage.

A successful publicist hires Grace to decorate his office with the condition that Will dates him.

Grace tones down her competitiveness during game playing, while Will's focus changes to winning; Karen saves a workman.

Grace and Will (Debra Messing, Eric McCormack) rethink their living arrangement; Jack (Sean Hayes) agrees to marry Karen's (Megan Mullally) maid (guest star Shelley Morrison).

To assert her independence, Grace moves to the apartment across the hall and throws a dinner party without Will's help.

A jealous Grace runs against Will for president of the board of tenants when she finds out about the position's perks.

Grace tries to live up to her new "dimensions" when a deceiving, but flattering, picture of her appears in a newspaper.

Grace's mom (guest star Debbie Reynolds) shows Will (Eric McCormack) a little too much attention for her jealous daughter's taste. With Debra Messing.

Will lets his ego get the better of him when he dismisses the clients who believed in him before he became a success.

Jack (Sean Hayes) challenges Will (Eric McCormack) to become a waiter on his staff; Grace (Debra Messing) finds out a dirty secret about Karen (Megan Mullally).

Jack's (Sean Hayes) mother (guest star Veronica Cartwright) doesn't know he is gay and thinks he once had a romantic relationship with Grace (Debra Messing).

Grace (Debra Messing) looks to Will (Eric McCormack) for representation when a lawyer (guest star Gregory Hines) doesn't pay her for a consulting assignment.

Rob and Ellen become jealous when Will and Grace begin to pal around with a photographer and an art gallery manager.

Will has until Friday to find a new client or lose his job; Jack and Grace try to get on their favorite TV show.

Grace (Debra Messing) is upset when Will's (Eric McCormack) best friend (guest star Megyn Price) from high school wants him to be the father of her baby.

Will suffers from strange dreams when he learns that Grace is dating his therapist; Jack and Karen argue about the treatment of Rosario.

Will's father (Sydney Pollack) dissuades him from attending a company banquet because he has told people that Will is married to Grace.

When a kiss between two gay men scheduled to air on TV doesn't happen, Will and Jack go to the network to complain and have an unexpected meeting with the "Today" show's Al Roker.

Will (Eric McCormack) gets advice from Jack (Sean Hayes) on how to handle a blind date arranged by his boss (guest star Gregory Hines).

Will's (Eric McCormack) former boyfriend (guest star Chris Potter) is back in town and may want to rekindle their relationship. With Debra Messing.

After Karen's husband suffers a heart attack, there is speculation on whom she will turn to for support.

Grace (Debra Messing) backs out of a charity commitment after she has already convinced Will (Eric McCormack) to participate.

When Ellen and Rob announce their engagement, Grace confesses to Will that she once had an affair with Rob.