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.

Will decides to further his cooking skills by taking a class and invites Jack to join him in the kitchen but when Jack decides to include his new boyfriend, the gourmet attorney finds himself a sad single in a cooking class full of couples. Elsewhere, Karen's mother Lois returns to town, slightly unnerving her daughter and calling on Grace's thrifty design talents to help decorate her new apartment.

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.

Enjoying the success of their new business venture, entrepreneurs Will and Grace help their apartment buyers Jack and Stuart settle into their new life under one roof. However, when Grace receives a higher offer on the apartment, the ""friendly flippers"" attempt to break up the happy couple by encouraging Jack's cold feet as they see a chance to make a quick buck. Meanwhile, Karen demands that Lyle finally discipline his unruly daughter Lorraine, nearly shattering the couple's budding romance.

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.