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