The Office Recap, "The Cover Up"

The episode opens with Jim and Pam teaming up to prank Dwight. The two are clicking and taping on their keyboards continuously, and Dwight thinks they are communicating in Morse code, talking about him. They tell him that’s ridiculous, but it’s true. Dwight gets frustrated, but all he can do is get in a Morse code stare down with Pam.

Michael is in a great mood due to his wildly successful relationship with Donna, the woman he met in “Happy Hour”. Michael calls everyone into a meeting so they can help him figure out more things to do with Donna than just have sex.

Ryan and Kelly bring to Michaels attention that Donna might be cheating on him, because they don’t go out.

Andy receives a call from a customer that the Sabre printer they bought caught fire during routine operation. He becomes frustrated when no one takes his customer's complaint seriously. He says something to both Stanley and Gabe (the corporate dude) but neither gives him any answers.

Michael is worried about Donna. “I haven’t eaten or slept since I found out Donna was cheating”, he says to the camera after knowing for about 5 minutes. Michael decides to put Dwight on the investigation, to follow Donna and see if she’s cheating.

Darryl uses Andy’s problem to get back at him for an incident that happened a couple years before, when Andy got Darryl in trouble for getting a paper shipment out late. He decides to prank Andy and convince him that something shady is going on with the fire printers.

Dwight follows Donna to the gym, and goes about things totally the wrong way. He attempts to seduce her, and fails, so he openly admits Michael sent him there to tail her.

Darryl enlists Creed to help further his prank. Then after initially pretending to help Andy to not get fired, Darryl agrees to film Andy using the printer in typical fashion to confirm his burning printer theory.

Donna comes to the office to talk to Michael about the whole situation, and after Michael charmingly apologizes to her about the whole thing, they talk about going away for a weekend.

Darryl and Andy go into the old Michael Scott Paper Company Office/Supple Closet and film the video, Andy continuously prints while Darryl films.

While Donna and Michael are talking about their trip, Pam find photos on Facebook revealing that she is hugging and kissing another man. Pam shows Michael the pictures she found, and he confronts Donna with the evidence.

At the end, to Darryl’s surprise, the printer indeed catches fire, confirming Andy's suspicions. Darryl decides to end his prank, with things getting “real, real fast”.

The episode ends with Michael confronting Donna in the parking lot. Donna reveals that she is cheating, but that it is Michael that is the "other guy". The photos are of her and her husband. Michael is left confused and hurt.