Invasion · SEASON 1
The Key
Episode 17 · 2006-03-15

- Sci-Fi & Fantasy
- Mystery
- Drama
Episode overview
Mariel begrudgingly performs an ultrasound when Christina demands to know what is growing so quickly inside of her. After the school reopens, Jesse is bothered by the way; some of the fellow students are acting. Russell and Dave investigate what Healy knew about the hybrids.
38 minutes
Season 1 episodes
1. Pilot2005-09-21
2. Lights Out2005-09-28
3. Watershed2005-10-05
4. Alpha Male2005-10-12
5. Unnatural Selection2005-10-19
6. The Hunt2005-10-26
7. Fish Story2005-11-09
8. The Cradle2005-11-16
9. The Dredge2005-11-23
10. Origin of Species2005-11-30
11. Us or Them2006-01-11
12. Power2006-01-18
13. Redemption2006-01-25
14. All God's Creatures2006-02-08
15. The Nest2006-02-15
16. The Fittest2006-03-08
17. The Key2006-03-15
18. Re-Evolution2006-04-19
19. The Son Also Rises2006-04-26
20. Run and Gun2006-05-03
21. Round Up2006-05-10
22. The Last Wave Goodbye2006-05-17