10-th episode of 5-th season "Its Always Sunny in Philadelphia"

What "Its Always Sunny in Philadelphia" 10-th episode about

Dennis teaches the guys his comprehensive seduction system that will help them gain the undying love and devotion of any woman. However, Charlie struggles to utilize what he just learned, while Mac and Frank decide to go in their own direction. Meanwhile, Dee fears that her boyfriend might be using a similar system to play her.

Episode number: 10

Episode name: "The D.E.N.N.I.S. System"

Episode release date: 20 november 2009 at 03:00

Status: aired

Rating: 9.3