NBC announced five full-season (22 episode) renewals for next year, including genre favorites Revolution and Grimm. Also renewed in the same announcement were Law & Order: Special Victims Unit, Parenthood and Chicago Fire. "We're especially pleased to be renewing Revolution and Chicago Fire — two first-season successes — and there will be more returning series announcements made in the next couple of weeks," said NBC Entertainment President Jennifer Salke. Revolution takes place in a post-apocalyptic dystopian future, fifteen years after an experimental weapon malfunctioned and led to a catastrophic power failure. People were forced to adapt to a world without electricity over the next fifteen years. Due to the collapse of government and public order, many areas are now ruled by warlords and militias. The series is produced by J.J. Abrams's Bad Robot, and the pilot was directed by Iron Man director Jon Favreau. In Grimm, Homicide Detective Nick Burkhardt of the Portland Police Bureau learns he is descended from a line of "guardians" known as "Grimms", charged with keeping balance between humanity and the mythological creatures of the world. Both series have a substantial presence at San Diego Comic Con International and other similar conventions.