And this season's plot has a lot of similarities to Davinci's Inquest / Willy Picton.

The Phone Call
I also thought it was Peggy at first. Could this be intentional, given that Don felt the need to ask "who is this?"

The fight scenes
Are not entertaining.

"cocksman"
Should be either "coxman" or "coxswains". Presumably it's a reference to rowing.