Springfield Subway Station couch gag

The Springfield Subway Station couch gag is the first couch gag of Season 21.

Plot
The Simpsons are at an underground subway station, where a train pulls in and opens its doors, revealing the living room that is set up inside the train, complete with the couch. The Simpsons get in and sigh as the door closes and the train pulls off.

Character Appearances

 * Homer Simpson
 * Marge Simpson
 * Bart Simpson
 * Lisa Simpson
 * Maggie Simpson

Trivia

 * This couch gag is similar to the Evergreen Terrace Subway couch gag from Missionary: Impossible, but the shot is from a different angle and the subway station is different.