When Peggy and Molly have lunch together, Mike worries that his mom is telling Molly unflattering stories about his childhood.

Victoria panics as her 30th birthday approaches, and drags Mike and Molly into her "life crisis".

Peggy gets a big surprise when she celebrates her boyfriend's birthday.

Molly wants to save money for their wedding, but Mike is lured into buying Vince’s 1957 Chevy Bel Air.

Carl tries to get a date with an attractive woman (guest star Holly Robinson Peete) he meets at the diner.

When Mike encourages his mom, Peggy, to get a job, he never imagines how it will interfere with Molly's life.

When Molly is swamped with Thanksgiving preparations and wedding planning, she asks Mike to help, with mixed results.

Carl faces his fear of commitment when his relationship with Christina takes a serious turn.

When Joyce accepts an ex-boyfriend's dinner invitation, Vince goes crazy with jealousy.

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.

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

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.

Mike and Molly decide the time is right for them to start trying for a baby. Meanwhile, Carl gets upset when he learns that Molly is still spending time with Christina after their breakup.

With the house feeling too cramped and crowded, Molly plans a family yard sale. Meanwhile, Mike and the guys take Carl on a fishing trip to help him forget his breakup with Christina.

Even while portraying Santa, Mike cannot contain his frustrations over Molly's Christmas spending and warns unsuspecting children about the dangers of maxing out credit cards to buy toys. Later, while Molly's family enjoys holiday festivities at home - complete with Christmas carols on Victoria's new karaoke machine - Mike and Molly get roped into spending Christmas Eve at church with Mike's mother and boss.

In an effort to boost their chances of getting pregnant, Molly encourages Mike to join her in giving up caffeine and eating healthier, causing them both to have major withdrawals.

Mike puts his construction skills to use turning the basement into a living suite for him and Molly, but he may have gotten in over his head. Meanwhile, Carl asks Samuel if he would be interested in moving in with him.

Wannabe-parent Mike takes a crash course in male fertility and heads to a clinic to ensure that he's potent enough to make a mother out of Molly. Meanwhile, Vince starts a job as a door-to-door vacuum-cleaner salesman.

Carl and Samuel hope for a little luck o' the Irish when it comes to picking up women at their St. Patrick's Day party, while Molly does a little Erin go bragging when she tells Mike about some of her holiday shenanigans.

After learning that Joyce gave up her artistic talents when she became a mother, Molly decides that she and Mike need to pursue new hobbies before becoming parents, so they take up roller skating.

When Molly finds herself at a crossroads with her career, she makes a huge decision.

Budding author Molly meets her literary idol, whose cynical advice is to focus on what she wouldn't want people to know about, while Mike tries to cheer up his down-in-the-dumps mother by having her over for dinner.

Molly believes her suspicious next-door neighbor is up to no good and recruits Joyce to help her spy on him. Meanwhile, the guys get together for a poker game and end up sharing their dreams and aspirations.

Mike decides he needs to live everyday like it’s his last after being shot during a robbery. As a result, he tells Carl it’s time for him to quit the police force.

After fighting with Joyce about money, Molly and Mike move into Mike's childhood bedroom at Peggy's place.

Mike asks Carl to fill in for him as Molly's dance partner, but gets jealous when he thinks they are having too much fun.

Samuel wants to be a standup comic; Molly offers advice to Harry which leads to him challenging his protective mother.

Molly tries to win some extra cash during a trip to a riverboat casino with the girls; Vince and Mike watch college basketball with the guys.

Mike, Samuel and Carl go on a road trip to Memphis, Tenn., to meet Carl's mother.

After Peggy's bathtub falls through the ceiling, Mike wants Peggy to go to a doctor.

Molly is ecstatic to be accepted into a prestigious eight-week writer's workshop, but Mike isn't thrilled about having his wife gone for the entire summer.

Mike smiles with joy after seeing Molly's advance check after she returned home from an eight week writing shop telling him she's been published.

Molly has writer’s block, and she might lose her big advance if she doesn’t cure it fast

Mike thinks Carl is out of line when he invites Victoria to go on what is supposed to be a men-only fishing trip.

Molly urges Mike to go to the doctor when she learns he hasn’t been in over a decade, on the 100th episode.

Molly’s excited her book is finally out and available for purchase, but worries obsessively that no one will buy it.

Peggy makes Molly do chores in exchange for sharing tantalizing stories from her past for Molly’s second book.

Mike is forced to uninvited Carl to his anniversary cruise after Carl’s nasty break-up with Victoria.

Mike and Carl go to couples counseling to try to reconcile their partnership. Also, Molly decides to do a promotional radio interview on her own after Peggy decides not to participate.

Mike blames Molly for Peg's heart attack following a heated argument and now Molly wants to make amends.

Molly brings home a pregnant former student she discovers is homeless.

Mike and Molly gather with family and friends for a momentous occasion and reminisce about everything that led to this point.