Mad Men, season 6

Don launches a new campaign in the sixth-series opener.

Roger receives some unnerving news; and Betty welcomes a houseguest.

Don has a difference of opinion with a client, while Peggy has problems motivating the staff.

The partners try to keep a secret campaign under wraps, while Joan gets a visit from an old friend.

Peggy plans for the future, while Roger courts a potential client.

Roger changes tack to make new business; Pete has an awkward run-in with a client.

Sterling Cooper Draper Pryce tries to placate competing clients; Pete is blindsided by an unexpected guest.

Don is disrupted by a surprise visitor; Peggy looks for inspiration.

Roger is plagued by a recurring dream; Joan goes to the beach.

The agency works to keep a client; Joan is caught off guard.

etty plans for Sally's future, while Peggy encounters trouble at home.

The partners disagree on a new campaign; Don takes a day off.

In the series 6 finale, Don has a problem.