Sheldon did get on the train in The Big Bang Theory season 7 finale, and he took it to Arizona.
In the season 8 premiere, Leonard and Amy will go on a road trip to pick Sheldon up.
By the second episode of the one-hour premiere, he’s already back in Pasadena and is forced to teach a class, which Howard actually enrolls in, CBS revealed.
Episode 1, titled The Locomotion Interruption, also includes Penny interviewing for a job at Bernaddette’s company as a pharmaceutical saleswoman and Howard getting weirded out by Stuart’s relationship with Mrs. Wolowitz.
Episode 2, titled The Junior Professor Solution, says that “the tension between Penny and Bernadette gives Amy a chance to play both sides.”
Stephen Root guest stars in the premiere, which will be on Monday, September 22, as Dan. Recurring cast members Kevin Sussman (Stuart) and Carol Ann Susi (Mrs. Wolowitz) will appear.
Regina King guest stars in episode 2 as Mrs. Davis.
Regular cast members Johnny Galecki (Leonard), Jim Parsons (Sheldon), Kaley Cuoco-Sweeting (Penny), Simon Helberg (Howard), Kunal Nayyar (Rajesh), Mayim Bialik (Amy), and Melissa Rauch (Bernadette) are all back after some contract tension during the break.
