Episode list

Will, Karen and Jack unknowingly take hallucinogens, which cause Will and Jack to wonder whether they're soul mates and have Karen giving her final performance as Mrs. Stanley Walker; a high-powered client takes up with Grace's sister Janet.

Will and Grace's plan to win over Will's new Columbia department head goes awry when he drops dead in their apartment - and they use his phone to text his full recommendation of Will. Karen and Estefan's dislike for each other puts Jack in full damage control mode when he must keep them separate at his birthday dinner.

When Will discovers Karen's estranged stepdaughter Olivia is a student in his law class, he attempts to solve their issues with a mock trial. Grace and Jack go on a diet together, but giving up their eating habits proves harder than anticipated.

Malcolm enlists Grace to help him win back Karen's affections. Will's flirtation at work lands him in an ethical dilemma. Jack's passion for performing is reignited by a chance encounter with Zusanna, the sister of his former acting teacher.

Will gives local newscaster McCoy Whitman a second chance and, with the help of Jack, finally gets to know the man behind the newsman. Grace's campaign for Design Guild President hits a snag when the deciding vote comes down to her old nemesis, Val. Karen acts as Grace's campaign manager, and attempts to secure Val's vote by any means necessary.

Jack's insistence that Will be nicer to his fiancé, Estefan, backfires when Estefan thinks Will is in love with him. In a hurry to buy her boyfriend Noah a Valentine's Day gift, Grace unknowingly knocks over a prominent figure while going after a taxi. And when Karen discovers that Noah not only writes her favorite romance novels but also plans to kill off the main character, she forces him to rewrite the story.

After her dad, Martin, is rushed to the hospital, Grace is shocked when he refuses a transfusion of Will's blood. Will's mom, Marilyn, uncharacteristically takes Martin to task. Karen's demands cause Jack to uninvite her to his wedding.

When both of their boyfriends ask to move in, Will and Grace use each other as an excuse to get out of it. A snowstorm traps Karen at the office and Jack in an elevator, where he reunites with old flame Drew and tests his commitment to monogamy.

Jack realizes he lost 13 gold coins he's supposed to give Estefan at their wedding to avoid a curse. Will is concerned that Grace is the only one compromising in her relationship with Noah. Karen shows up at a dinner party with her new date, Nikki.

Jack and Estefan's romantic wedding in Spain takes a detour when their flight is cancelled, forcing them to get married at the airport by their friend Miss Coco. McCoy's big job offer in London has Will worried about engaging in a long-distance relationship. While dealing with doubts about her current relationship, Grace meets a charming guy at the airport who inspires her to make an impulsive decision. And advice from Smitty makes Karen reconsider her commitment to Nikki and her own sexual orientation.

Grace returns from her travels a new woman, but her elation is short-lived when she receives life-changing news; Karen teaches Will how to be better at phone sex; Jack has a yard sale to discreetly get rid of Estefan's cuckoo clock.

When Grace admits she's not sure who's the father of her baby, Karen orchestrates a "Mamma Mia" situation with the potential baby daddies; Will worries what will happen if he has a straight son and enlists Jack to help him prepare.

Will discovers a way to finally get back at Jack for years of mocking his hairline; Grace is determined to prove to Mrs. Timmer she's strong enough to handle being a single mother; Karen squares off against Stan's brother in a poker game.

Will and Grace fight over whose process of having a baby is more difficult; Jack helps Karen prove that she'll be a competent owner of her new baseball team, but Karen realizes that an old acquaintance may be the help she really needs.

In the aftermath of Will and McCoy breaking up, Grace and Jack hire the Grief Panda to help Will process his pain; with Karen completely occupied with her baseball team, Grace believes that she has to fire Karen in order to set her free.