5 second plot: Sheldon is thinking about ending his relationship with 'string theory'. He's looking for a new field of expertise. Howard meets Raj's girlfriend Emily. He finds out he knows her already. In a bad way. Sheldon gets drunk and calls up Stephen Hawking.
5 second review: Clogzilla. That's gonna stick. Hilarious episode.
IMDb score: 8,8/10
Our score: 9/10