When Molly suggests that she and Mike write their own wedding vows, he finds it hard to swallow, until Carl provides him with some food for thought and tells him to just pretend he's describing his favorite meal - lasagna.

Peggy goes on vacation and leaves Mike and Molly in charge of her dog, claiming that it's good practice for when they have children.

When Mike and Molly meet with the priest at Peggy's church, Molly's forthright nature winds up costing them their wedding chapel.

Molly's dieting goes into overdrive when her wedding dress doesn't zip during her final fitting.

Mike's dad comes to town early to attend Mike's bachelor party, which prompts Peggy to attend Molly's bachelorette event.

Two days before their wedding, Mike and Molly arrange their wedding rehearsal which turns into a disaster.

Mike and Molly have to deal with several problems as they make their way to the altar.

Mike is inspired by their honeymoon trip to Paris to change his life and travel the world, while Molly worries how their family and friends fared at home without them.

Joyce conveniently disappears after a back injury renders Vince practically immobile, and that leaves Mike and Molly to take care of him. Meanwhile, the newlyweds are still laboring over personalized thank-you notes for their wedding presents.

Molly gets upset when she reviews her wedding photos because in every picture Mike's mouth is open or his eyes are closed. Meanwhile, Carl gets jealous when Christina's ex-husband comes back into her life.