The Big Bang Theory Season 8 Premiere Details Revealed

CBS has revealed the plot details for both episodes of the one-hour season premiere of The Big Bang Theory.

In "The Locomotion Interruption," Leonard and Amy take an unexpected road trip to Arizona to pick up Sheldon. Meanwhile, Penny interviews for a job at Bernadette's company, and Howard is weirded out by Stuart's relationship with Mrs. Wolowitz.

In "The Junior Professor Solution," when Sheldon is forced to teach a class, Howard surprises everyone by taking it. Meanwhile, the tension between Penny and Bernadette gives Amy a chance to play both sides.

The Big Bang Theory returns for Season 8 on Monday, Sept. 22, 2014 at 8 p.m. ET on the CBS.