Wow, a totally action-packed, topsy-turvy, and, despite some big emotional hits, surprisingly fun episode to end the season. But the somber part first: Betty tells Don she's made an appointment with a divorce attorney, and even though Don condescends to her, she stands firm. However, when she and Henry consult said attorney, he tells them New York State is a bear in these matters, so they should go to Nevada for six weeks to establish residency so she can get a quickie divorce. Henry tells Betty he wants her free from any obligations to Don, so they plan to follow the lawyer's advice, but a wrench is thrown into the works when Roger, newly-reconciled with Don, tells him about Betty's involvement with Francis, which he heard about via Margaret. Don then drunkenly confronts Betty, and they have an awful fight, with ugly yet valid points on each side, that ends in her kicking him out of the house. Before he leaves, however, they give the kids the much-dreaded news that Don's moving out, and it's devastatingly horrible all around. In the end, Don tells Betty he's not going to fight her about the split, and that he hopes she gets what she's always wanted. She tells him in turn that he'll always be the kids' father, and they say goodbye and seem to really mean it.

Now, the good stuff. Hilton informs Don that McCann Erickson, the firm that Don turned down back in Season One, is going to be buying PPL, and while Roger might survive and Don definitely will, Bertram will definitely be thrown out as part of the deal. Don flashes back to when he was a child and his father busted out of a farming cooperative he was in, and the memory prompts him to go to Bertram and beg him to try to do something to save their independence. Bertram tells Don that Roger will most definitely be needed for any potential save of SC, so the three of them bark at each other for a while until Don kind of apologizes to Roger for the way he's treated him and Bertram adds that Roger will die if he doesn't join them (not being figurative about that, either). The three of them call Pryce in and tell him they want to buy the company back for a modest premium over the original purchase price, but Pryce tells them while SC is being sold, PPL is not, and the offer they're making is insufficient. However, not surprisingly, Hilton's information proves the more reliable, as when Pryce tells Powell about the little meeting, he learns not only that PPL is indeed being sold, but that he can expect to be farmed out to McCann as part of the deal. Don then calls Bertram, Roger, and Pryce in and comes up with a brilliant idea -- since Pryce has ultimate authority over personnel matters, he can fire all the principals, after which he'll no doubt be released, upon which point he'll be made a partner in the new order. But while Pryce thinks getting them out could be done, he points out that they'll still need accounts to survive, so the four conspirators close the office on Friday the thirteenth and send a memo to London just after British close of business, giving themselves the weekend to steal enough accounts to support the new entity. Don recruits Peggy for the new agency, but he's a dick to her, as he has been the whole season, so she turns him down. He and Roger then go to see Pete, who's faking being sick because he had an interview with Ogilvy that day, and give him the news. Roger tells him they need him, but Pete wants to hear the reason why from Don, so Don tells him, truthfully, that Pete has been ahead of them on a lot of fronts -- aeronautics and "the Negro market" being two prominent examples -- and they need him to keep them looking forward. When Pete asks for partnership and Don accepts with the condition that he deliver the new accounts by Sunday, the race is on. The partners also ask Harry to come with them, and after Bertram literally and hilariously threatens to lock him in the closet if he doesn't accept, Don then goes to Peggy and atones for his earlier behavior, even admitting that he's seen her as an extension of himself before telling her, basically, that she's a visionary, which parallels what he told Pete and backs up Duck's point that Pete and Peggy have some sort of consciousness of kind. Peggy's sold, and the team is rounded out when Roger calls Joan in for help on pulling off the account-stealing coup as stealthily and efficiently as possible. They cart all the files they need out under cover of the night, and just like that, we'll never see this bunch at SC again, much to the chagrin of those they didn't take. I'm guessing that means Ken and Paul are being written off, and it's not like I wouldn't miss them but given how little action they've had this season it wouldn't be a huge surprise. The new company will need an art director, though! Pryce immediately follows the partners out the door when Powell fires him first thing Monday morning, and Joan thereafter sets up the new office of "Sterling Cooper Draper Pryce" in a suite in the Pierre. In the end, Don smiles at his new family, and after we see Carla taking care of the kids and Betty and Francis flying out to Nevada, Don moves into a new apartment in the city, on his own but not, as he feared, alone. And while I could use a little break from recapping, a year is still too long to wait for another season.