Dennis and Dee's ailing grandfather Pop-Pop is wasting away in the hospital, and they have to decide whether or not to pull the plug. But things get complicated when The Gang learns of Pop-Pop's history as a Nazi, and Mac, Charlie and Frank set off in search of the old man's spoils from the war.

With the garbage men of Philadelphia on strike, Frank concocts a plan to undercut the union and get the contract to collect the city's trash.

The gang make a disturbing discovery after crashing Maureen's wedding.

Charlie and Dee become romantically involved with two members of a wealthy family, which arouses jealousy in Mac, Dennis and Frank.

The Gang gets Freudian as they step into the therapist's office to work through their mountain of issues, but when Dennis thinks he has everyone figured out, the shrink turns the tables on him and exposes the insanity in his unique brand of pop psychology.

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.

With Charlie under his wing, Frank cleans up so he can get his hands dirty and help out his old company with one last big merger. An unwritten rule of the bar gets the rest of the gang caught up in a case of mistaken identity.

After slipping into an unhealthy obsession with computer games, The Gang wrestles to define the difference between the real and the virtual worlds.

Every member of The Gang has something to celebrate at Guigino's, Philly's finest eatery, but when Mac and Dennis' private dinner is interrupted by an unexpected sighting of Frank and Charlie, the in-fighting begins. Dee also turns up at a table for one, and over the course of the night, the "one-ups-manship" soars to new heights.

Court is in session at Paddy's Pub as Frank and Dennis present their cases to the rest of the gang, resulting in a verdict that will change their lives FOREVER... but not really.

The gang attempts to cheer up a deeply depressed Dee, realizing they are the cause for her predicament.

After Frank appears on Local Television advocating gun ownership, the rest of the gang takes a look at the ownership process and alternatives to find a common ground on this still heated issue.

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.

The gang does their best to recoup their investments in questionable schemes by dumping their losses on Ben the soldier while trying to avoid being duped again by whatever mastermind is pulling their strings.

Everyone in the gang gets a day to do what they want while everyone else in the gang must participate willingly. This is Mac's Day... and its got twice the "Mac".

A routine trip to a convenience store places the gang in the middle of an armed robbery.

The gang voluntarily quarantine themselves inside of Paddy's in an attempt to keep their singing voices pristine for an upcoming competition when a severe flu outbreak sweeps Philadelphia.

When an experiment successfully multiplies Charlie's intellect and takes him away from the bar, the rest of the gang find themselves struggling to complete the menial "Charlie Work" that has kept the bar running for so long.

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.

When some bad blood with old foes compromises their ideal Thanksgiving, the gang decides to make amends by breaking bread with those they've hurt.

Mac oversees the gang while they compete to break Wade Boggs’ legendary beer drinking record.

The gang gets into the online dating scene to expand their matchmaking potential.

When Psycho Pete, long lost member of the freight train, is released from the mental hospital, Dennis and Dee rush to get him recommitted while Charlie and Mac attempt to restore him to his former hard-partying form.

Charlie goes into overdrive when he's notified that the health inspector will be arriving that day. Meanwhile, the rest of the gang is trying to exploit a flaw in the air-miles reward system. Written by David Hornsby; directed by Matt Shakman.

Dennis and Mac enlist Dee to spy on the fish factory across the street, Charlie and Frank grow suspicious and decide to do some spying of their own. Written by David Hornsby; directed by Matt Shakman.

The group separates from one another to find out who they are as individuals after another failed endeavor.

News surfaces about Mac's Dad, Luther, being a murder suspect. Mac goes into full "P.I." mode to clear his father of any wrong doing.

When the gang appears on a nationally broadcasted game show, Dennis does his best to keep the gang’s weirdness under wraps.

Frank decides to retire; the foursome begin to plot and plan ways for each of them to take control of the bar.

"Asskickers" isn't just a hot new way to work out; it's a way of life...and maybe a cult.