Ed gives advice he soon regrets regarding pre-nups to Mr. Mazula. Carol is under a lot of pressure between wedding planning and publishing deadlines until Molly steps in. Mike crumbles when he takes on more decision making.
Ed's ex-wife Liz shows up and needs extensive legal help from Ed which makes Carol uncomfortable. Toby, a student in Carol's writing class, makes a concerted effort for Carol to start dating him despite her engagement to Ed.
Ed's ex-wife Liz returns with a business idea to interest Ed and gives him an valuable gift which concerns Carol. Eli's attempt to save the community center leads to a radio job. Gunther, an exchange student, makes a move on Nancy.
Ed is concerned about his image after he, Carol, and Liz are robbed at gunpoint. Eli mishandles a listener request and Jennifer feels his radio job interferes with their relationship. Mike deals with the fallout when he parents have a problem.
With Ed and Carol's wedding happening soon Lloyd and Stella reappear. Lloyd has tax problems and expects Ed to fix it. Stella starts things back up with Warren and Carol disapproves. Mike and Nancy compete to see who is sicker.
Ed is inspired to have a circus themed wedding and Carol agrees. Molly and Nancy try to stop it with second thoughts occurring mid vows. Mike takes one last bet. Warren and Mark do a hilarious homage to Ed's courtship of Carol.