The Big Bang Theory - Season 10 ... -

: Sheldon, Leonard, and Howard struggle under a deadline from the U.S. Air Force for their quantum gyroscope invention.

The tenth season of marks a major shift in the series, moving from the group's "bachelor era" into deep domesticity. The 24-episode season, which aired from September 2016 to May 2017, centers on significant life milestones: a second wedding, the start of a family, and a long-awaited engagement. Core Story Arcs & Major Milestones The Big Bang Theory - Season 10 ...

: A major arc involves Amy and Sheldon moving in together following a flood in Amy's apartment. This transition forces Sheldon to confront his father's history and explains "lore" like his three-knock rule . : Sheldon, Leonard, and Howard struggle under a

: The season opens with Leonard and Penny’s formal wedding ceremony to accommodate their families, introducing Penny's mother (Katey Sagal) and brother (Jack McBrayer). The 24-episode season, which aired from September 2016

The season concludes with "," where Amy is away at Princeton for a fellowship. When a former admirer, Dr. Ramona Nowitzki, kisses Sheldon, he immediately flies to Princeton to propose to Amy . Notable Guest Stars & Cameos Season 10 features a high-profile guest cast :

: Raj faces a personal crisis when his father cuts him off financially, forcing him to move out of his apartment and briefly live in Sheldon's old room at Penny and Leonard's. The Finale: A Game-Changing Cliffhanger

: Howard and Bernadette welcome their daughter, Halley, in the mid-season episode " The Birthday Synchronicity ".