After discovering that he might have cancer, Mac and Dennis attempt to find a woman who will sleep with Charlie. In the midst of their search, Mac falls in love with a transsexual he meets at the bar named Carmen. Overwhelmed by the extra workload that she had to take on since Charlie has taken a leave of absence, Dee tries to get Dennis to hire a recently out of work actress friend to help out.

Dennis and Mac make a decision to take away all rules concerning moral and behavioral etiquette at Paddy's after an argument about the Constitution. Frank uses the decision and it's following consequences to his own gain. Meanwhile, Charlie tries to convey his love for America by protesting while Dee attempts to reaffirm her goal of being an actress.

Mac, Dennis and Dee try out for the Philadelphia Eagles. Also interested in becoming an Eagle is Liam and Ryan McPoyle's brother, Doyle.

Charlie and Frank awake to find poop in their bed. Neither will confess to being the owner, so they, Mac, and Dennis try to scientifically deduce who dropped the deuce. Dee wants to do something a bit more sophisticated, so she invites the waitress and Artemis to a girls' night out.

In the season finale, Charlie gets the gang to help him put together a rock opera based on his song "Nightman."

The waitress is getting married, Dee is jealous that she's beating her to the altar, so she tries to derail the wedding.

The gang puts together a wrestling show for returning troops. Meanwhile, Dee finally meets the soldier that she has been communicating with over the internet.

Mac's mother is left homeless after she burns down her house, which leaves Charlie and Mac with no choice but to make new living arrangements; when Dee feels under the weather, Frank tries to muster his paternal instincts to care for her.

The gang gets a real scare after Dee reveals she's pregnant, forcing the guys to recall their last hazy Halloween party to determine who the father is.

Short amateur parody of the film franchise, including some scenes from Season's 6 "Dee Reynolds: Shaping America's Youth" episode.

Frank finds himself in the child beauty-pageant business and fears that people might think that he's in it for the wrong reasons. Meanwhile, Dee wages war on stage moms, and Mac, Dennis and Charlie think they have found a contestant to back.

Mac, Charlie and Dee struggle with their faith as Charlie's mom fights cancer. Meanwhile, Frank loses his memory amidst a search for buried treasure.

Tired of failing to be recognized for their years of service in the bar industry, the gang changes their ways to give the patrons what they think they want.

After creative differences over what constitutes tasteful nudity cause Frank to pull his money out of "Lethal Weapon 6" during filming, Mac, Dennis, and Charlie screen their rough footage for investors in hopes of raising enough capital to finish the production of their latest masterpiece.

The gang have a new scheme and Frank tries to keep up.

To one-up the guys, Dee has organized an "all-female reboot" of the Wade Boggs challenge on a first-of-its-kind, all-female flight headed to L.A. for the women's march.

Upon discovering that their self-made Lethal Weapon sequels have been pulled from the local library, the Gang decides to address their political incorrectness by making another film — Lethal Weapon 7.

The guys crash Dee's bowling league night and compete in a Battle of the Sexes at a bowling alley owned by the McPoyles. Dee, The Waitress, Artemis, and Gail the Snail versus Dennis, Mac, Charlie, and Frank in a classic match to prove who is better.