The fourth season of the television comedy series Mike & Molly is set to begin airing on November 4, 2013 on CBS in the United States. The season is produced by Chuck Lorre Productions and Warner Bros. Television, with series creator Mark Roberts. On March 27, 2013, CBS announced that Mike & Molly would return for a fourth season of 22 episodes to air mid-season. On October 9, 2013, it was announced that the fourth season would premiere on November 4, 2013.

The series focuses on the title characters Mike Biggs (Billy Gardell) and Molly Flynn (Melissa McCarthy), a couple who meet at an Overeaters Anonymous meeting in Chicago, Illinois. After Molly, a primary-school teacher, invites police officer Mike to give a talk to her class, they begin dating. As of the end of season 2, the two are married. Mike and Molly live in the basement at the home of Molly's mother Joyce (Swoosie Kurtz) and sister Victoria (Katy Mixon). Joyce is in an on-off relationship with widower Vince Moranto (Louis Mustillo), who is often seen at the house. Mike is regularly kept company by his best friend and partner in the police force, Carl McMillan (Reno Wilson). Other prominent characters in the series include Carl's grandmother Rosetta (Cleo King), Mike's mother Peggy (Rondi Reed), cafe worker Samuel (Nyambi Nyambi), and Mike and Molly's friend and co-Overeaters Anonymous member Harry (David Anthony Higgins).

In promos leading up the the fourth season premiere, CBS billed the series as The New Mike & Molly. Though the cast and setting remains essentially the same, the "new" refers to Molly quitting her teaching job and pursuing a career as a writer.

1."Molly Unleashed"

When Molly finds herself at a crossroads between her career and her dreams, she makes a huge decision to leave her teaching job. While getting drunk with Joyce and Victoria, she reveals that she always wanted to sing in musicals, but it becomes clear that will not work out. 

2."The First and Last Ride-Along"

Molly decides writing a crime novel will be her new career, so she goes on a ride-along with Mike and Carl to research a book she wants to pen. 

3."Sex and Death"

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 while she's out. 

4."Careful What You Dig For"

5."Poker in the Front, Looker in the Back"