An exasperated Grace tries to mediate between a resentful Will and her sloppy, free-spirited boyfriend Nathan when Nathan moves in while Jack is in a royal dither as he plans to finally meet his unseen father face-to-face. However, Grace grows nervous when the two polar-opposite men find some common ground and she ponders how a devoted boyfriend might affect her equally important relationship with her longtime buddy Will. After settling his father issues, Jack later gets the surprise of his life in a most unexpected fashion.

Grace, exaspérée, tente de trouver une solution pour arrondir les angles entre son petit ami Nathan et Will, qui a la rancune tenace...

ג'ק מאמין שהצליח סוף סוף ליצור קשר עם אביו האמיתי וקארן מארגנת לשניהם מסיבה אצל וויל וגרייס. גרייס לא מרוצה שנייתן גר עם חברתו הקודמת, ולכן הוא עובר לגור איתה.

Will e Nathan non riescono proprio ad andare d’accordo, mentre Jack finalmente scopre chi è suo padre.

Het klinkt niet helemaal tussen Will en Nathan, en de spanning loopt nog verder op als Nathan bij Will en Grace intrekt.

Intussen zoeken Jack en Karen wanhopig naar Jacks biologische vader.

Jack ha encontrado finalmente a su padre. Will y el resto de sus amigos preparan una fiesta para recibir a tan importante invitado.