The Locomotion Interruption
'The Locomotion Interruption' - Season 8, Episode 1
After spending the summer riding the rails, Sheldon's cross-country train journey comes to an end in Arizona, where Leonard and Amy must drive out and pick him up. Meanwhile, Bernadette secures Penny a job interview, and Howard grows concerned about Stuart's relationship with his mother.
Air Date: September 22, 2014.