Michael refuses to fire the new office assistant (Evan Peters) when people complain about his bad attitude; Pam tries to impress Jim by pulling an office prank.
Corporate forces Michael into counseling with Toby; Dwight seeks revenge after a shop owner snubs him; Pam tries to change her job title.
Andy invites the office to a play he is in, hoping that Erin will attend; Jim and Pam struggle with their incompetent baby sitter.
Thinking he has herpes, Michael contacts all his ex-girlfriends; Andy holds a sex education meeting for the office.
Michael, Dwight and Jim set up a sting after a competing sales associate steals a client; Andy starts a band.
Michael freaks out when Darryl goes over his head and takes an idea to corporate; a Halloween costume contest puts the office in a competitive mood.
Michael invites the entire office to celebrate the christening of Pam and Jim's baby.
Erin and Gabe host a "Glee" viewing party; Michael is upset when people refer to Gabe as his boss; Andy becomes increasingly jealous.
Michael helps convince people to invest in Ryan's Internet company; trying to capitalize on Thanksgiving, Dwight creates a hay festival in the parking lot; a new policy prevents Jim from earning commission.
Michael decides he must stop China before it takes over the United States; Pam threatens to move the company to a new building.
Michael is happy when Toby takes a leave of absence and corporate sends Holly Flax to fill in; Pam must plan a second Christmas party when Michael wants the party to be on the day of Holly's return to Scranton.
Holly and Michael turn Andy's business seminar into an improv challenge; Erin and Gabe compete in a board game battle.
Jim is forced to abandon Michael at a gas station after receiving an emergency phone call; Erin, Dwight and Holly search for Michael; Pam's art inspires a captioning contest that appears to offend Gabe.
Public displays of affection between Holly and Michael make everyone uncomfortable; Jim and Pam experience the aftermath of a bottomless champagne lunch; Andy tags along on Erin's romantic treasure hunt.
After 11 years of preparation, Michael is ready to debut his action movie.
Dunder Mifflin traveling salesman Todd Packer comes to the office looking for a desk job; Andy fights Pam for a new computer.
Michael decides to ask Holly to marry him; the office has a garage sale.
Everyone hopes to make good first impressions with the new manager, Deangelo Vickers.
Michael teaches DeAngelo (Will Ferrell) how to host the Dundie Awards; Erin struggles with her feelings for Gabe.
Michael wants a drama-free day to say goodbye to his friends; Deangelo and Andy work to keep Michael's most-important clients.
Deangelo plays favorites by creating an inner circle of most liked employees, and the women notice it seems to be all guys.
Members of the sales staff let Sabre's new Sales Is King policy go to their heads.
Andy tries to make Secretary's Day memorable for Erin; Oscar circulates a viral video comparing Kevin's voice to Cookie Monster's.
Pam and Jim work on their first joint sales pitch; Michael misreads body language; Dwight encourages Kelly to try out for the minority training program.
Michael thinks his girlfriend is cheating on him and asks Dwight to investigate; Andy becomes frustrated when no one takes his customer's complaint seriously.
Michael is surprisingly cheerful after learning bad news about Donna; new parents Pam and Jim have a hard time staying awake at the office; Dwight refuses to honor a contract.
When the press learns that Sabre's printers catch on fire, Jo tries to find out who the whistle-blower is.