Mike and Molly have to deal with several problems as they make their way to the altar.
Two days before their wedding, Mike and Molly arrange their wedding rehearsal which turns into a disaster.
Mike's dad comes to town early to attend Mike's bachelor party, which prompts Peggy to attend Molly's bachelorette event.
Molly's dieting goes into overdrive when her wedding dress doesn't zip during her final fitting.
When Mike and Molly meet with the priest at Peggy's church, Molly's forthright nature winds up costing them their wedding chapel.
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 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.
Molly decides to throw Mike a birthday party to make up for the fact that he hasn't had one since he was 9-years-old; Samuel dates a girl he met online.
After forgetting to prepare for Valentine's Day, Mike takes advantage of Carl's elaborate plans with Christina (Holly Robinson Peete).
When Joyce accepts an ex-boyfriend's dinner invitation, Vince goes crazy with jealousy.
Molly and Joyce ask Mike for help when Victoria is arrested for a number of driving violations.
Carl faces his fear of commitment when his relationship with Christina takes a serious turn.
After getting disappointing news at work, Molly goes into a bad state which threatens to ruin Christmas.
When Molly is swamped with Thanksgiving preparations and wedding planning, she asks Mike to help, with mixed results.
Mike starts cheating on his diet as Thanksgiving Day approaches, but attempts to hide it from Molly.
When Mike encourages his mom, Peggy, to get a job, he never imagines how it will interfere with Molly's life.
Carl tries to get a date with an attractive woman (guest star Holly Robinson Peete) he meets at the diner.
Mike is spooked when Molly's boss invites them to a party on Halloween, a holiday he dreads.
Despite Mike's good intentions, he adds fuel to the fire when Molly and her family get in a fight.
Molly wants to save money for their wedding, but Mike is lured into buying Vince’s 1957 Chevy Bel Air.
Mike tries to adjust after he gives up his bachelor pad and moves in with Molly and her family.
Peggy gets a big surprise when she celebrates her boyfriend's birthday.
Following their engagement, Molly is anxious to start planning the wedding while Mike wants to go fishing with his friends.
