- Genres Action, Drama, Mystery, Science-Fiction, Thriller
- Runtime 45 minutes
- Total runtime 19 hours 30 minutes
- Status Ended
- Network FOX (US)
The show revolves around a corporation running numerous underground establishments across the globe which program individuals referred to as Actives with temporary personalities and skills. Wealthy clients hire Actives at great expense for various purposes. The series follows the Active known as Echo, on her journey towards self-awareness.