Responding to the pleas of his father's mistress-turned-girlfriend Tina, Will attempts to discover whether there is a new woman in his dad's life. However, when his father's new mistress turns out to be his mother, Will must find a way to break the shocking truth to Tina. Meanwhile, Elliot's decision to try out for his high school cheerleading squad has Jack all smiles as he is determined to help his son make the team.

The episode was rated 7.61 from 146 votes.

When Grace and Leo join Karen for a friendly game of tennis at her exclusive club, her fierce playing style sends Grace fleeing the court. However, when the reason for her angry play is her hatred for Leo, Grace is determined to find a way for them to get along. Elsewhere, a nervous Will suckers Jack into visiting his depressed mother in Connecticut hoping they can cheer her up.

The episode was rated 7.61 from 190 votes.

Continuing his new role as caretaker for a disabled Marilyn, a resentful Will takes his wheelchair-bound mother for an afternoon roll in the park and bumps into an attractive bachelor Tom wheeling an invalid of his own. Using his mother as a reason for a daily rendezvous in the park, Will attempts to build up the courage to ask Tom out. Elsewhere, Karen continues her lifelong quest to hunt down hubby-stealing Lorraine tracking her to a room at the Peninsula hotel only to discover occupant to be her father Lester.

The episode was rated 7.61 from 171 votes.

Dynamic enterprisers Will and Grace begin a new business venture as they buy old apartments to refurbish and re-sell for a tidy profit. When budding "student nurse" Jack bumps into his former acting mentor Zandra, the pair of entrepreneurs finds their first project apartment. Meanwhile, Karen renews her romance with Lyle Finster, but the couple's bliss is interrupted by an unfortunate houseguest when Lorraine moves in.

The episode was rated 7.62 from 157 votes.

Love is in the air as Will's slightly eccentric new client falls for Jack after he interrupts their meeting, but when Jack refuses to accept the romantic offer, Will sinks to bribing him in the hopes of furthering his career. Elsewhere, Grace and Karen take a trip to Leo's cabin in Vermont in order to fix the plumbing — and uncover a secret pile of cash in the master bed.

The episode was rated 7.62 from 158 votes.

Opting to forgo a picturesque fall wedding to elope in Las Vegas, Karen hops a plane to "Sin City" with fiance Lyle and faithful friends Will and Jack but when she bumps into vacationing superstar Jennifer Lopez, she asks J-Lo to sing at the ceremony. Meanwhile, Leo returns from Cambodia to meet up with Grace at the wedding, but their reunion is delayed by a freak design accident.

The episode was rated 7.64 from 149 votes.

Hoping to cheer up Grace, a well-dressed Will takes his best friend with him on a dinner date. When the date stands him up, Will catches the eye of a female patron while Grace bumps into a guy with whom she once shared an ordinary, forgettable romantic encounter. Meanwhile, Karen takes student nurse Jack out to celebrate his school "success" but the evening turns sour when Karen runs into her ultimate nemesis, Candice Bergen. The meeting sparks yet another round in the Bergen/Walker Prank War of 2003.

The episode was rated 7.67 from 169 votes.

Depressed over his decision to leave Doctors Without Borders, Leo turns to a motivated Will to rekindle his love for New York. However, when Will's version of "the best of New York" filled with long shopping trips and high tea doesn't do the trick, Leo decides to move in a different direction. Meanwhile, Jack teams up with his new coach Karen as they prepare for the annual gay spelling bee.

The episode was rated 7.70 from 168 votes.

Smitten with his new boyfriend Vince, Will puts his relationship to the test introducing him to the overly critical Grace for her approval. However, when Grace abruptly cuts the introduction short, Will is convinced of her disapproval of Vince and thus begins to question his own feelings. Meanwhile, Karen drops a bombshell on Jack, revealing that after her upcoming wedding their friendship will be forever changed, forcing him to begin casting calls for her replacement.

The episode was rated 7.71 from 162 votes.

Searching for a movie-watching pal after Stuart opts out, Jack invites Grace for an afternoon at the theatre. However, when the duo discovers Stuart and a mystery man secretly catching a matinee, Jack is left questioning their relationship. Elsewhere, Will attempts to teach Karen the skills of driving, but the road warriors have a run in with the law their first trip behind the wheel, prompting Will to fight the ticket in traffic court.

The episode was rated 7.72 from 152 votes.

Opting out of the annual Grace Adler Design Christmas party, ultimate "Fanilow" Will spends the night waiting in line for tickets to a special Barry Manilow concert only to have his weak bladder force him to make a quick pit stop and entrust Grace to hold his place. However, Will's snubbing of an overweight man in the bathroom line leaves his chances of meeting his idol in doubt. Meanwhile, a distraught Grace discovers her mother has cancelled on their annual Hanukkah shopping spree to have dinner with Jack. And Karen is embraced by the inspiring music of Manilow waiting in line with a Fanilow named Cheryl.

The episode was rated 7.73 from 160 votes.

Earning a brief speaking role in an off Broadway play, Jack shares the stage with legendary actor James Earl Jones. However, when the play's director rejects James' performance in favor of Jack's one-line triumph, the award-winning actor looks to his co-star for instruction - enrolling in the McFarland acting school. Meanwhile, new roommates Will and his mother Marilyn continue their living arrangement, despite a secret desire to part ways.

The episode was rated 7.74 from 181 votes.

Opting to forego a picturesque fall wedding and elope in Las Vegas, Karen hops a plane to "Sin City" with fiance Lyle and faithful friends Will and Jack. After arriving, they bump into superstar Jennifer Lopez who is vacationing and agrees on behalf of Rosario to sing at the ceremony. Meanwhile, Leo returns from Cambodia to meet up with Grace at the wedding, but their reunion is delayed by a freak design accident.

The episode was rated 7.75 from 149 votes.

Tip-toeing through his budding relationship, an apprehensive Will makes the mistake of taking Grace's advice on love, playing hard-to-get with his new pseudo-boyfriend. However, when his game playing causes a rift in this budding romance, Will is left questioning Grace's wisdom in matters of the heart. Meanwhile, a distraught Jack and Karen bravely attempt to soldier on after learning their favorite television show will be going off the air forcing them to say goodbye to their six favorite Friends and a psychiatrist named Frasier Crane.

The episode was rated 7.78 from 155 votes.

When Leo invites his hip and trendy ex-girlfriend to a friendly dinner party, Grace turns to Will, Jack and Karen to round out the guest list and keep the night running smoothly. However, when Leo's ex turns out to be the only girl Will ever slept with, Grace's jealousy gets the better of her. Meanwhile, Karen discovers Lorraine's dog Chompers hiding in Stan's closet and searches for a new owner for the puppy.

The episode was rated 7.84 from 212 votes.