The NBC Universal Digital Studio today announced August 18 as the premiere date of its first original online series "Gemini Division," starring Rosario Dawson and Justin Hartley.

The first webisodes will premiere on NBC.com and SCIFI.com, with new webisodes rolling out weekly. Webisodes will also be available weekly on VOD via Comcast, Time Warner Cable, Verizon FiOS and DISH Network, in addition to EST (Electronic Sell-Through) via Amazon Unbox, Microsoft's Xbox LIVE and Zune, NBC Mobile and several online video portals.

Set in the not too distant future, "Gemini Division" follows NYPD vice cop Anna Diaz (Rosario Dawson) who, while searching for the truth behind her fiancée's murder, is drawn into a secret war between a race of artificial life forms know as SIMs and the covert agency charged with hunting them down.

The series stars:

Rosario Dawson as Detective Anna Diaz
Justin Hartley as Nick Korda
Kevin Alejando as Amasso
Francois Chau as Dr. Martin Ng
Elizabeth Bogush as Dr. Elizabeth Gavilan
Daz Crawford as The Cleaner
Mark Espinoza as Sal Diaz
Matt Bushell as Detective Pete Vacarella
Eugene Alper as Dr. Thaddeus Lazlo

Click the pics for Rosario Dawson's gallery: