With the impending arrival of Dee's baby, the guys try to figure out who the father is by having a party for all her past flings.

Episode Viewers and Ratings

Season 6 Episode 12 of It's Always Sunny in Philadelphia resulted in a 0.00 rating in the 18-49 demographic.

It's Always Sunny in Philadelphia Season 6 Episodes...

• s06e01 - Mac Fights Gay Marriage
• s06e02 - Dennis Gets Divorced
• s06e03 - The Gang Buys a Boat
• s06e04 - Mac's Big Break
• s06e05 - Mac and Charlie: White Trash
• s06e06 - Mac's Mom Burns Her House Down
• s06e07 - Who Got Dee Pregnant
• s06e08 - The Gang Gets a New Member
• s06e09 - Dee Reynolds: Shaping America's Youth
• s06e10 - Charlie Kelly: King of the Rats
• s06e11 - The Gang Gets Stranded in the Woods
• s06e12 - Dee Gives Birth
• s06e13 - A Very Sunny Christmas, Part 1
• s06e14 - A Very Sunny Christmas, Part 2

It's Always Sunny in Philadelphia Show Summary

Five egocentric friends who run a neighborhood Irish pub in Philadelphia try to find their way through the adult world of work and relationships.

Unfortunately, their warped views and precarious judgments often lead them to trouble, creating a myriad of uncomfortable situations that usually only get worse before they get better.