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It's Always Sunny in Philadelphia S5E10 poster

Watch It's Always Sunny in Philadelphia – Season 5 Episode 10: The D.E.N.N.I.S. System

It's Always Sunny in Philadelphia • Season 5, Episode 10 • 21 min • 2005 • ⭐ 8.3/10 • Comedy

Cast: Rob Mac , Charlie Day , Glenn Howerton , Kaitlin Olson , Danny DeVito

Directors: Rob Mac

Watch It's Always Sunny in Philadelphia – S5E10

Episode Overview

Dennis reveals his foolproof system for seducing any woman to the rest of the gang, but they don't grasp the concept.

Episode Navigation

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More Episodes from Season 5

It's Always Sunny in Philadelphia S5E1 poster
S5E1 • 22m
The Gang Exploits the Mortgage Crisis
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The Gang Hits the Road
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The Great Recession
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The Gang Gives Frank an Intervention
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S5E5 • 21m
The Waitress Is Getting Married
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The World Series Defense
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S5E7 • 21m
The Gang Wrestles for the Troops
 It's Always Sunny in Philadelphia S5E8 poster
S5E8 • 21m
Paddy's Pub: Home of the Original Kitten Mittens
 It's Always Sunny in Philadelphia S5E9 poster
S5E9 • 22m
Mac and Dennis Break Up
 It's Always Sunny in Philadelphia S5E11 poster
S5E11 • 21m
Mac and Charlie Write a Movie
 It's Always Sunny in Philadelphia S5E12 poster
S5E12 • 21m
The Gang Reignites the Rivalry

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