It’s Always Sunny in Philadelphia Season 6 Episode 13
Season 6
Episode: 13
Air Date: 2010-12-16
After years of being mistreated by Frank during the holiday season, Dennis and Dee decide to teach him a lesson. Meanwhile, Mac and Charlie reflect on their childhood Christmases, and…
When profiling a series of child abductions and murders, the team discovers that one of the cases may not be the handiwork of the serial killer they apprehended.