Penny and Amy attend a geologist's party hosted by Bert (Brian Posehn).

While cleaning out the future nursery with Raj, Bernadette confesses she lacks "maternal instincts" and isn't excited about the baby.

In the episode of The Big Bang Theory (Season 10, Episode 3), the characters face pressure from a government deadline, social surprises, and personal anxieties. Plot Summaries

Sheldon, Leonard, and Howard struggle to finish a quantum gyroscope for the Air Force within a strict two-month deadline.