Fresh off pledging his commitment to Eva and his plan to move in with her, Jack returns to Liz and proposes they renew their vows. The family is torn about whether to trust Jack, and Eva sets her sights on manipulating Sue and winning her favor.
Jack secretly rekindles an old romance, while Trish pursues a new one--with her high school English teacher. As the increasingly fragile Sue feels the pressure of wedding planning, she begins to lash out at Liz and accuses her of neglectfulness.
Sue finally reveals to Liz that she's been meeting with Eva secretly. But it's not Liz's jealousy she'll have to worry about--it's Trish's. Jack reconsiders his loyalties after he learns Eva has planted evidence of their affair for Liz to find.
With their parents away, John Paul and Anthony play. Elsewhere, the church becomes the stage for a highly charged confrontation between Liz, Jack, and Father McGinley. Will Jack be able to convince Liz of his love, or will this be the last time he wrongs her?
Despite Jack's reputation, Eva takes him in when Liz kicks him out for good. When the teacher Trish has been seeing breaks off their relationship, she threatens to get him fired by exposing their affair.
Trish takes a stand against going to school, but Eva breaks through to her. Debbie grows suspicious of Nick's meddling in Eva and Jack's affairs, while Liz wrestles with regret and self-doubt as her disgraced husband carries on with his second wife across the street.
After spending a passionate night with Father McGinley, Liz feels ashamed of their tryst. She burns a bridge by expressing her reservations to Sue about her fiancé. Meanwhile, Debbie gets close to Nick's dark secret--perhaps closer than she'd like.
Debbie leaves Nick after he divulges his attraction to Eva, who must now sort things out between them. John Paul visits the church to seek advice from Father McGinley, but finds himself consoling the drunk priest and learning something he shouldn't in the process.
After her fight with Eva and the fallout with Trish, Liz is paralyzed by depression and loneliness, afraid of losing everything. Now John Paul and Anthony, the only remaining children still loyal to Liz, must try and resist Eva's temptation.
Jamie and Sue have their bachelor and bachelorette parties, but what should be a night of rowdy celebration turns out to be relatively dull. Behind the scenes, however, the ultimate betrayal takes place.
Liz sits at home, nine months pregnant, and reflects on Jamie and Sue's wedding. She's due at any moment, surrounded by her caring family. When the time finally comes, though, it's Eva who offers to take her to the hospital.