Efrain Gomez

Sheldon and Raj ask Bernadette for advice about their jealousy when Amy and Howard decide to collaborate on a new project.

Richard is distracted while trying to finish his demonstration, Jared worries that Monica is trying to replace him, Dinesh develops a crush and Erlich's past threatens the company's chances.

Caroline is excited to go out on her first date with Bobby, but she gets nervous jitters when she realises Max will be in charge of the dessert bar solo for the first time.

Katherine and the team head to Silicon Valley to invest in green tech, including Sandbox, a potentially bogus company founded by Wesley's friend, Chase.