Question: When does toby come back to the office?

context: In "Frame Toby", it is revealed that Toby had returned to the office for a week without Michael noticing. When the staff tells Michael that Toby is back, Michael thinks it's a joke until he sees Toby and screams "No God! Please No! No!" Michael asks David Wallace to get rid of Toby but the CFO says he can not fire Toby without cause. Michael then attempts to get Toby fired by giving Pam a fake letter to give to Toby, asking him to hug and kiss her no matter how much she resisted, and taunting the HR rep into punching him, but both plans fail. Michael then tries out Dwight's idea of planting drugs in Toby's desk (unknowingly buying basil from a caprese salad from warehouse workers who he thinks sold him marijuana). However, he does feel guilty about what he has done and, when the police are investigating the "drugs", Michael tells the police that it's a mistake and tries to stop them from arresting Toby. This suggests that, while Michael does hate Toby, there are limits to his hatred. Then again, Toby's reaction to the setup—that it wasted the cops' time that could have been used to deal with law enforcement—inspires more shock and disgust from Michael.
question: What episode does toby come back to the office?
short_answers: Season 5 Episode 9
Frame Toby
context: "Frame Toby" is the ninth episode of the fifth season of the television series "The Office", and the show's eighty-first episode overall. The episode aired in the United States on November 20, 2008 on NBC.
question: Which date did the episode air that toby comes back to the office?
short_answers: November 20, 2008

Answer: The Office is an American mockumentary sitcom television series that depicts the everyday work lives of office employees in the Scranton, Pennsylvania, branch of the fictional Dunder Mifflin Paper Company. In the show, Toby Flenderson leaves the company for Costa Rica. In season 5 episode 9, Frame Toby, Toby returns to work and Michael enlists Dwight's help to frame him for using drugs so he will be fired. The episode aired in the United States on November 20, 2008 on NBC.