Mac concocts a scheme to attract single women to rent Dennis' bedroom while Frank and Charlie make similar plans to draw in young, European coeds, but neither ad attracts their intended target.
Landing in the middle of a focus group after a screening of "Thunder Gun 4: Maximum Cool", the gang is determined to restore glory and traditional American values back into the franchise, even if it involves sabotage.
The guys are in the final preparation stage for an unknown scheme when Dee enters to inform them that it is "Dee Day", and they have to do everything she wants without complaint.
Annoyed that the Gang failed to react as he nearly choked to death on an appetizer, Frank decides the Waiter, his savior, is the only person who has his back.
During their trip to the Philadelphia Zoo, Mac sets up a text group chain for The Gang, but confusion sets in and The Gang must learn from the meerkats on how to communicate properly in a group.
In the black-and-white noir world of his memory, Charlie navigates the seedy underbelly of Philadelphia as Frank has been "diarrhea poisoned", and it's up to Charlie to clean up the mess.
As a record-breaking heat wave overtakes Philly, the Gang plans to profit from global warming by pumping up the A/C so people will congregate at Paddy's and save energy at home.
Trapped inside Paddy's with a suicide jumper on the roof, the Gang wonders if they should bother intervening with an algorithm of their own - Could he, would he, should we?
When a trendy new hair salon opens up right next door to Paddy's, Dennis and Frank go on the offensive to stop women from cutting off their hair. Meanwhile, Mac is reunited with his childhood dog Poppins.
Dennis and Charlie stand guard at the entrance to their laser tag base waiting to ambush the legendary "Big Mo", but Dennis begins to ponder the reasons they play laser tag and if their pursuit of a victory is worth their effort.