Despite a great group of actors and decent writing, Threshold doesn't move beyond average sci-fi fare. That doesn't mean it's not entertaining, especially for fans of the genre, but viewers looking for something really special should go elsewhere.
The series features a strong supporting cast... but in this premiere there's too much emphasis on fictional scientific theories and not enough character development to make the few scares in "Threshold" worth a two-hour commitment.
For all the atmospheric weirdness and bursts of crazy violence that fill the show, it isn't until the end of the first hour that one gets a genuine sense of excitement... This mood is not sustained.
The pilot was great - good plot with lots of fighting-the-alien-conspiracy potential, a fantastic cast, solid dialogue. But it quickly got very repetitive, in just the 10 or so episodes that aired.