Sheldon and Penny bond over missing Leonard. Howard tries to help Raj get over his breakup with Lucy. Amy and Bernadette take a trip together to a biology convention.
Episode rating
Cast of episode
68
24
5
2
1
- Sheldon Cooper
- Penny
- Leonard Hofstadter
- Raj Koothrappali
- Amy Farrah Fowler
- Howard Wolowitz
- Bernadette Rostenkowski
- Janine Davis
- Grace
- Scientist
- Waiter
- Party Guest
- Drunk Scientist