It's Always Sunny In Philadelphia - Episode 14.08 - A Woman’s Right to Chop - Synopsis

Synopsis

When a trendy new hair salon opens up right next door to Paddy’s, Dennis and Frank go on the offensive to stop women from cutting off their hair. Meanwhile, Mac is reunited with his childhood dog Poppins.
Written by Dannah Phirman & Danielle Schneider, directed by Pete Chatmon.

Source:

FX