Dennis presents his fool-proof plan for picking up chicks, but soon finds that the gang each has their own fool-proof plans for one-upping each other.
It's Always Sunny in Philadelphia
The D.E.N.N.I.S. System
season 5 episode 10
episode aired on november 2009
Episode rating
Cast of episode
79
9
4
3
3
1
- Dennis Reynolds
- Charlie Kelly
- Dee Reynolds
- Frank Reynolds
- Mac
- Waitress
- Caylee
- Ben (The Soldier)
- Carney Boss
- Carney
- Gladys
- Boyfriend at Carnival