The fourth season of the American television comedy series Rules of Engagement premiered as a mid-season entry on March 1, 2010 and concluded on May 24, 2010. It consists of 13 episodes, each running approximately 22 minutes in length. CBS broadcast the fourth season on Monday at 8:30 pm in the United States between How I Met Your Mother and Two and a Half Men.
Jeff listens to Russell about a co-worker and finds himself in trouble. Timmy is sent to get Russell's phone from the apartment of his most recent conquest.
Audrey tries to make Jeff feel guilty for not telling her that his friend's bachelor party in Atlantic City was cancelled; however, her plan backfires when Jeff discovers that Audrey is also being deceitful.
Audrey is upset when Jeff reveals to her that he doesn't believe she saw her dead grandmother's ghost. Meanwhile, Russell tries to persuade Timmy not to go through with his arranged marriage.
Audrey is surprised by Jeff's sudden interest in her favorite reality show until she discovers the reason. Meanwhile, to Russell's delight, Timmy has second thoughts about his impending arranged marriage.
Jeff and Audrey have trouble spending time apart after their plans don't work out. Russell finds out that Timmy is harboring some ill feelings toward him.
Jeff really can't stand not knowing the score of the NY Rangers game and has to try hard to get the game off his mind while at a party for Audrey's boss.
Russell is mad at Timmy because he doesn't root for the home team.
Audrey is over bearing with a potential surrogate mother for her and Jeff. Russell finds Jennifer and Adam's wedding web site and teases them about it.
Audrey attends her high school reunion intent on proving to her former classmates how great her life is in New York City. Meanwhile, Russell accidentally ruins Timmy's dinner party.
A new employee with an axe to grind against Audrey files a sexual harassment claim against her. Meanwhile, after being teased for playing cricket, Timmy challenges Jeff to a game to prove the sport is not for wimps.
Adam and Jennifer plan a secret wedding; however, a series of unfortunate events puts their plan in jeopardy. Meanwhile, to keep Russell and Timmy from finding out about the ceremony, Adam tells them he is staging an intervention for Jeff, on the fourth season finale of RULES OF ENGAGEMEN.