The BEST seasons of Threshold

Every season of Threshold ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Threshold!

Threshold, from producers David Heyman, David Goyer, and Brannon Braga, and written by Bragi Schut, revolves around a female government contingency analyst who leads a team of scientists and military personnel who get in contact with a mysterious alien lifeform.