Michael refuses to fire the new office assistant after everyone complains about his bad attitude. Andy plays it cool after Erin shows interest in another man. Meanwhile, Pam tries to impress Jim by pulling an office prank of her own.

Corporate assigns Michael to counseling with Toby. Dwight vows revenge on the Steamtown Mall after a shop owner snubs him. Meanwhile, Pam conspires to change her job title.

Andy invites the entire office to his community theater production of Sweeney Todd in hopes that Erin will attend. Michael tries to put his jealousy aside and enjoy the performance while Jim and Pam struggle with their incompetent babysitter.

Michael, believing he has herpes, contacts all his ex-girlfriends, including Jan and Holly. Andy tries to play on Erin’s compassionate side by holding a sex education meeting for the office.

When a competing sales associate steals a Dunder Mifflin client, Michael, Jim and Dwight decide to set up a sting to find out his sales secrets. Andy decides to start a band after finding out a friend from college has a successful music career.

When Darryl takes an idea to corporate over his head, Michael freaks out. Everyone in the office is in a competitive mood as the Halloween costume contest gets underway. Meanwhile, Pam tries to get the truth out of Danny about their dating history.

Pam and Jim prepare for Cece's baptism. When Cece goes missing, Jim fears Angela has taken her.

An ostracized Michael does all he can to sabotage Gabe's party while Angela requests sex from Dwight.

Michael tries to save Ryan's company by encouraging co-workers to invest. Meanwhile, Dwight has big plans for the office at Thanksgiving.

After reading an article about China growing as a global power, Michael decides China must be stopped before they take over the US. Everyone in the office complains about Dwight's building standards and Pam threatens to move Dunder Mifflin to a new building.

Michael is over the moon when he learns that Holly is temporarily returning to Scranton to cover for Toby. Overcome with a desire to impress her, he cancels the Christmas party Pam organized and plans a new one: a "classy" Christmas, with tuxedos, gourmet hot chocolate, and fine decorations. But Holly's return brings back old feelings... and old jealousies. Meanwhile, Dwight and Jim start a snow fight that soon gets out of hand.

Elegance falls apart when Michael realizes that Holly is still romantically linked to her boyfriend A.J. Jealousy drives him to childish actions, culminating in an emotional confrontation and a devastated snowman. Meanwhile, the rivalry between Dwight and Jim reaches a new level, amid traps in the snow and surprises around every corner. A "classy" Christmas... only on paper.

Michael prepares himself for the good or bad news about Holly and her boyfriend. In an effort to be an "awesome" office manager, Pam decides to put up a resolution board for everyone to post their New Year's resolutions.

Holly and Michael turn Andy's business seminar into an improv challenge. Erin and Gabe compete in a board game battle.

An emergency call from Helene forces Jim to abandon Michael at a gas station restroom, and Holly, Erin, and Dwight set out to rescue him. Gabe becomes offended at submissions to caption Pam's latest work of art.

The staff grows increasingly uncomfortable with Michael and Holly's PDAs. Jim and Pam regret a champagne luncheon. Andy horns in on a romantic treasure hunt Gabe arranged for Erin.

Michael screens his action film Threat Level Midnight to the office after eleven years of writing, shooting, re-shooting, and editing. The film features Michael as Agent Michael Scarn, Dwight as Scarn's sidekick, and Jim as archnemesis "Goldenface," as well as several people from Michael's past.

Traveling salesman Todd Packer comes to Dunder Mifflin looking for a desk job in the office. However, the office is unsure if they want him to work there due to his previous behavior. After dealing with computer problems, Andy confronts office administrator Pam to get a new computer.

The office holds a garage sale in the warehouse. Michael decides to propose to Holly, and runs into trouble thinking of how to do it well.

The new manager, Deangelo Vickers, has everyone hoping to make good first impressions: Andy finds himself awkwardly typecast while Jim and Pam worry that they've come on too strong. Only Dwight is apathetic about the new leader.

Michael trains Deangelo to take over his job of hosting the Dundie Awards, while Erin struggles with her dislike for her boyfriend, Gabe.

Michael prepares for his move to Colorado with Holly, but decides not to tell anyone that this will be his last day. Thus begins an emotional tour of silent goodbyes, heartfelt confessions, and symbolic gifts. He tries to leave each colleague with one last special moment as he strives to keep the secret... even as Jim begins to suspect something.

The day of farewell really comes. Michael, finally without armor, shows a tender and vulnerable side, leaving behind notes, souvenir objects, and words never spoken. The highlight is his conversation with Jim, made up of subtext and heart. But perhaps the real goodbye, silent and deep, happens with Pam, at the airport. A touching episode that closes an era with simplicity and affection.

When Deangelo plays favorites, his management style is exposed.

Dwight takes charge of the office and immediately imposes his will on the staff. Gabe hopes to get back together with Erin.

After Michael leaves, an internal committee... led by Jim, Toby and Gabe... is formed to find the new manager. Interviews turn into a carousel of unlikely candidates, from Creed to Darryl to... an increasingly unstable Dwight. Andy tries to stand out as the office moves without real leadership, with unpredictable results.

The interviews continue with a mix of ambition, disasters, and surprising appearances (including a certain Robert California). Angela announces big news on the personal front, while Kelly becomes convinced she is perfect for the role...complete with professional "rebranding." But in the end, the position still remains vacant, leaving everyone with bated breath ahead of the new season.