A standard ingredient of the Trope Workshop:Impossible Mission plot: after having outlined the goal for the episode, Mr. Exposition will describe a list of all the insurmountable obstacles that stand in the way of that goal. If the exposition is worked from the outside-in, the obstacles are sometimes each explained as they are overcome. What also often happens is one character mentions all the Description Porn they can of the castle they are going to storm and a second character explains the exact details of how they can get around all the traps and not be seen.