George and Mary insist on meeting the new woman in Georgie's life. Also, Sheldon and Missy have suspicions about what's going on with their family.
'Young Sheldon' looks back on the early life of Sheldon Cooper before the events of 'The Big Bang Theory', when he was simply a nine-year-old genius living with his family in East Texas. Sheldon skips fourth grade and heads directly to high school, much to his siblings' chagrin.