S04E10 — The Alien Parasite Hypothesis
- Watched
- 2024-11-08 ✓
- Air year
- 2010
- Source
- Netflix
- Duration
- 26/20 min
- Tags
- Comedy
Episode summary
Amy finds she has sexual feelings for Penny's ex, while Koothrappali and Wolowitz try to prove who would be the better superhero.