Frustrated by his inability to change his field of study at Caltech and overwhelmed by Leonard and Penny's engagement, Sheldon decides to leave Pasadena on a train journey of self-discovery.
Leonard and Penny announce their engagement, but the celebration is briefly overshadowed by Raj revealing he finally had sex with Emily. [S7E24] The Status Quo Combustion
Played by Kevin Sussman , Stuart faces a personal and professional low after his shop burns down. Frustrated by his inability to change his field