Threshold: Episodes
Season 1
| # | Name | Date |
|---|---|---|
| 1 | Trees Made of Glass (1) | 9/16/05 |
| 2 | Trees Made of Glass (2) | 9/16/05 |
| 3 | Blood of the Children | 9/23/05 |
| 4 | The Burning | 9/30/05 |
| 5 | Shock | 10/7/05 |
| 6 | Pulse | 10/14/05 |
| 7 | The Order | 10/21/05 |
| 8 | Revelations | 11/4/05 |
| 9 | Progeny | 11/22/05 |
| 10 | The Crossing | 1/11/06 |
| 11 | Outbreak | 1/18/06 |
| 12 | Vigilante | 1/25/06 |
| 13 | Alienville | 2/1/06 |