Showtime is launching "Dexter Game On" (DexterGameOn.com), an interactive promotional game that will take place simultaneously at San Diego Comic-Con and in five other major cities across the U.S.
from July 21 to July 25. Showtime worked with SCVNGR -- an iPhone and Android-based application -- to build "Dexter"-themed challenges for the game. Once the "Dexter" community amasses 100,000
completed challenges, a never-before-seen sneak peek of the series' upcoming fifth season will be unlocked and available.