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.

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.

Andy tries to make Secretary's Day memorable for Erin; Oscar circulates a viral video comparing Kevin's voice to Cookie Monster's.

Michael tries to impress one of Pam and Jim's friends; Erin and Andy try to keep their relationship a secret; Dwight reconsiders his contract with Angela.

Members of the sales staff let Sabre's new Sales Is King policy go to their heads.

Michael (Golden Globe winner Steve Carell) thinks he impressed Jo (guest star Kathy Bates) only to discover someone else in the office caught her eye. Meanwhile, Dwight (Rainn Wilson) makes trouble on Jim's (John Krasinski) first day back from paternity l

Pam and Jim find themselves making an embarrassing blunder after the birth of their baby. Michael sets up Erin and Kevin for a breakroom lunch date, making Andy jealous.

Pam's contractions begin but she and Jim are determined to wait it out as long as possible so they can have more time at the hospital. Meanwhile the rest of the office tries to distract Pam from the pain with food and entertainment. In the second half hour, Michael anxiously waits for Pam and Jim's baby to be born. Back at the office, Erin makes Andy jealous when she has lunch with Kevin

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Michael has trouble adjusting to Dunder Mifflin's acquisition by a company called Sabre, and Andy and Erin prepare a song to welcome the new owners. Jim and Pam interview to get their impending baby into a good daycare.

When a prospective buyer for Dunder Mifflin visits, everyone looks to impress and Michael gets nostalgic.

Jim's decision to let Phyllis play Santa at the Dunder Mifflin Christmas party ires Michael. Dwight and Jim hope to infuse the staff with holiday spirit, though their heads are filled with worry over the bankruptcy rumors.

Michael is forced to face the music after he realizes he can't keep a promise he made to a group of kids 10 years ago. Meanwhile, Jim starts an employee of the month program to increase employee morale.

Michael brings Dwight, Andy, and Oscar to NYC when he's to be honored at the Dunder Mifflin shareholder meeting. Jim tries to get Ryan to work.

Michael starts up an audiotape murder-mystery game to distract staff from rumors of Dunder Mifflin filing for bankruptcy. Andy uses the game's Southern flavor as cover to ask out Erin, but is unsure if she thinks it's for real.

Jim and Pam go on a double date with Pam's mom and Michael. Dwight starts being nice to everyone in the office, hoping to gain favors owed to him, but his plan is hampered by Andy's excessive politeness.

The workers at Dunder Mifflin want to create a haunted house for the children in the community for Halloween. Elsewhere, while on his way to an important business meeting, Michael falls into a koi pond.

Jim and Pam are stunned to discover Michael is dating her mother. Dwight bugs Jim's office under the guise of a gift.

Dwight and Andy have Michael believing an insurance saleman is a Mafioso. Pam has a painting accidentally destroyed by Erin.

The Dunder Mifflin staff head to Niagara Falls for Jim and Pam's wedding, with the understanding that her pregnancy is a forbidden discussion topic. Michael, Dwight, and Andy all hope to find romance of their own among the guests.

The Dunder Mifflin staff learn not to all expect raises. Dwight seeks to team up against Jim. Pam pushes for cash instead of traditional wedding gifts.

Michael gets worried after a request from Jim, and Pam's busy with wedding planning. Darryl's worker's compensation claim makes Dwight suspicious.

A few interns who stayed at Dunder-Mifflin over the summer end their internship.