Moss has a new mug with a picture of his name on it so that it doesn‘t go missing. Unfortunately, Moss learns that his mug has gone missing. Jen has become more comfortable with her surroundings and sees for the first time the "Red Door." Roy refuses to allow her to see what‘s behind it for fear that Jen will upset the delicate eco-balance of the office.While on an IT call, Roy becomes trapped as a "desk rabbit" and Moss has to go and save him, leaving the Red Door unguarded. What will Jen find behind the door and what the heck is a "desk rabbit?"