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.

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 could not be happier when Toby has to take a leave of absence and corporate sends Holly Flax to cover for him. Pam is forced to do a second Christmas party after Michael wants the party to be on the day Holly returns to Scranton. Meanwhile, Jim regrets agreeing to a snowball fight with Dwight.

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.

Robert California stops by for the first time as CEO and leaves behind a mysterious list that has a line down the middle and every member of the office on either one side or the other. The office members frantically try to figure out what it means. Meanwhile, the new manager Andy faces a crisis.

The entire warehouse staff quits after winning the lotto, leaving Andy and Darryl to scramble for replacements while several of the office workers get a taste of the warehouse life.

Dwight installs a Doomsday device that will fire all of the employees and effectively close down the branch if they make too many mistakes. Meanwhile, Gabe attempts to court the new warehouse worker, Val.

Andy attempts to make everyone's Christmas wishes come true, including those of a drunken Erin. Meanwhile, Dwight and Jim are entangled in an escalating prank war wherein one attempts to frame the other.

Jim returns from jury duty, only to have to deal with Dwight's pesky questions about the details of the case. Elsewhere, Angela and her senator beau welcome their baby.

Dwight scores a special assignment at Sabre's Florida headquarters. As a result, he and Andy must decide which Scranton staffers will join him. Elsewhere, Pam returns from maternity leave.

Andy returns to the office to find Nellie in the manager's chair. Meanwhile, Kelly struggles to choose between Ryan and a new man.

Dwight offers free family portraits, and a stolen diaper leads to a high-speed car chase. With help from David Wallace, Andy goes undercover to try to get his job back. A new business opportunity arises for Robert California.

When the party planning committee drops the ball on the annual Christmas party, Dwight gets everyone to celebrate with a traditional Schrute German Christmas. Darryl fears that Jim has forgotten to include him in the new job in Philadelphia. Pete teaches Erin about his favorite movie, Die Hard.

Dwight is tasked with hiring a part-time salesman to be Jim's substitute, so he rounds up a supergroup of his cronies, including his oddball beet-farmer cousin, Mose. Pam is left wondering who her new deskmate will be. Erin seeks her birth parents with help from Pete.

Pam’s warehouse mural is defaced. Darryl has difficulty dealing with the Jim's cleanliness habits in their apartment. Angela grudgingly allows Oscar and Kevin to attend her son’s first birthday party.

Dwight and Angela participate in a paper airplane contest and compete against each other. Meanwhile, Andy prepares for a potential acting job, and Jim and Pam utilize new skills.

Jim convinces Dwight that he needs to choose someone to act as an Assistant to the Assistant Regional Manager; the two subsequently hold tryouts for the position. After her daycare turns away her child, Angela is forced to bring her kid to work. Andy auditions for "The Next Great A Cappella Sensation".

One year later, Dunder Mifflin employees past and present reunite for a panel discussion about the documentary and to attend Dwight and Angela's wedding.