"The Locomotion Interruption" is the first episode of the eighth season of The Big Bang Theory, which first aired on CBS on September 22, 2014.
Forty-five days after leaving Pasadena, Sheldon finds himself in a train station in Kingman, Arizona with all of his possessions (and his pants) stolen.
Sheldon thinks his trip was worthwhile because it has left him ready to deal with change, but as soon as he sees Penny's new haircut he immediately walks out of the apartment.
[6] In TV Fanatic, Day gave the episode a negative review, calling it "an utter disappointment"; Day strongly disliked Sheldon's storyline, "was most interested" in Penny's plot and "had mixed feelings" about Howard's storyline.
[7] Runcie, in The Telegraph, said the episode was "heavy on intense discussion" and "not always comedy-rich", giving it two out of five stars.