Key episodes: Pretty much the entire season
This was a deliciously Pete heavy season, beginning with Trudy kicking him out and continuing through his disappointments at the office, loneliness at his apartment in the city and frustrations with his dementia-suffering mother.
Pete nearly orchestrated a move to take SCDP public, before Don and Ted agreed to the merge. He's seen Peggy's star rise, while his career has plateaued. And the whole Bob Benson thing really threw him.
But instead of lashing out in his usual slimy way, we've seen Pete start to grow. To realize he doesn't need to fight people to win, and to begin to deal with some of his deepest insecurities. All of a sudden it seems like Don Draper could learn a few things from Pete Campbell.