CLIFTON, New Jersey (AP) -- Two years ago, Muslim groups protested when the plot of the hit Fox drama "24" cast Islamic terrorists as the villains who launched a stolen nuclear missile in an attack on America.

Now, after a one-year respite during which Russian separatists played the bad guys on the critically acclaimed series, Muslims are back in the evil spotlight. Unlike last time, when agent Jack Bauer saved the day, the terrorists this time have already succeeded in detonating a nuclear bomb in a Los Angeles suburb.

Being portrayed again as the heartless wrongdoers has drawn renewed protests from Muslim groups, including one that had a meeting with Fox executives two years ago over the issue. (Watch why "24" is worrying Muslims )

"The overwhelming impression you get is fear and hatred for Muslims," said Rabiah Ahmed, a spokeswoman for the Washington-based Council on American-Islamic Relations. She said Thursday she was distressed by this season's premiere. "After watching that show, I was afraid to go to the grocery store because I wasn't sure the person next to me would be able to differentiate between fiction and reality."

She said the group had a conference call Wednesday with Fox executives to protest the current plot line and request more positive portrayals of Muslims on the show, but was not promised anything.

After a January 2005 meeting with CAIR, Fox aired a commercial in which the show's star, Kiefer Sutherland, urged viewers to keep in mind that the show's villains are not representative of all Muslims.

In a written statement issued late Wednesday night, the network said it has not singled out any ethnic or religious group for blame in creating its characters.

"24 is a heightened drama about anti-terrorism," the statement read. "After five seasons, the audience clearly understands this, and realizes that any individual, family, or group (ethnic or otherwise) that engages in violence is not meant to be typical.

"Over the past several seasons, the villains have included shadowy Anglo businessmen, Baltic Europeans, Germans, Russians, Islamic fundamentalists, and even the (Anglo-American) president of the United States," the network said. "The show has made a concerted effort to show ethnic, religious and political groups as multidimensional, and political issues are debated from multiple viewpoints."