On Valentine's Day, Mike and Molly play Cupid and prod Harry into asking Victoria out on a date, and to everyone's surprise she accepts. Meanwhile, Carl has a list of reasons why hanging out at the coin laundry on the holiday will help Samuel and him meet single women.

Mike’s birthday wish is to have his wife and mother get along, but Molly and Peggy butt heads more than ever as they try to plan his birthday party together. Meanwhile, Samuel and Carl compete for the same woman.

Mike goes on a junk food binge to cope with missing Molly while she is out of town for a teacher’s conference. Meanwhile, Carl contemplates leaving Chicago after learning heartbreaking news from James.

Molly has a “mind-blowing” experience when she goes to Victoria’s workplace, a funeral home, to research her novel. Meanwhile, Mike sneaks a peek at Molly’s writing when she’s out.

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.

Molly accepts a job as a forklift driver at Vince's warehouse when she decides to take a break from writing her novel.

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.

Molly meets the friend of her dreams when Peggy's childhood pal (Kathy Bates) visits, but Peggy isn't fond of sharing.

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.

Samuel contemplates moving back to Africa when he receives a letter from his parents saying they’re struggling financially.

Molly faces a dilemma when her publisher asks her to make a provocative change to her book.

When Mike reaches a weight-loss goal -- his personal best -- he decides to celebrate by indulging in a slice of pie.

Molly is nervous about Mike attending a celebratory party her publisher puts on for her and Peggy.

Molly surprises Peggy by reuniting her with her estranged sister, Rosemary, when they take a road trip to Peggy’s hometown of Mudlick. Also, Vince and Mike experience father-son bonding when they work together to fix the water heater.

Molly gives Mike a device that will track his activity in hopes of helping him get healthier and take better care of himself, but Mike has other plans.

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

Mike becomes hypervigilant after his wallet is stolen from the squad car while taking a nap.

When Mike and Molly realize Frannie (Juliette Goglia) doesn't have a plan in place for after the baby is born, Molly decides to help by reuniting her with her estranged sister, Maura (Jessy Hodges).