Season finale. Grace's father connects with Will's mother; Jack rebounds; Malcolm forces Karen to make the toughest choice. Blythe Danner, Alec Baldwin and Robert Klein guest star.

Grace leans on Will when she goes home to celebrate her dead mother's birthday; after a breakup, Jack is crushed when he uncovers Karen's secret. Alec Baldwin, Robert Klein and more guest star.

Will rekindles a relationship with a former love against Jack's better judgement; Grace fights for Karen's civil rights when a bakery refuses to make her a controversial cake.

Grace and Will question their life choices at a baby shower; Jack and Karen combine child labor with musical theater; Jennifer Lopez guest stars as herself and her Shades of Blue character.

Grace is horrified to realize she's dating three men from the same family; Karen and Will bond over creating their own little telenovela. Dan Bucatinsky and Barry Bostwick guest star.

Will and Grace clash when they get the chance to hawk Grace's line of linens on live TV; a trip down memory lane prompts Karen to truth-bomb Jack's love life. Lauren Weedman guest stars.