When Travis and Wes swap lives for an exercise, they find it also helps them on a case on Common Law. "Role Play" is the seventh episode of the show's first season.

Common Law Season 1 Episode 7 Quotes

Travis: We don't do the learning.
Wes: That's kind of an unwritten rule in our thing.

I'm the one teaching lessons here. Tomorrow, school is back in session, baby.