Sons and Lovers, Pt. 1

S3 E24: An exasperated Grace (Debra Messing) tries to mediate between a resentful Will (Eric McCormack) and her sloppy, free-spirited boyfriend Nathan (Emmy Award-winning guest star Woody Harrelson) when Nathan moves in while Jack (Sean Hayes) 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. Megan Mullally and Shelley Morrison also star. Part 1 of 2.