The 45-year-old film actress plays the lead character of abandoned wife Laura Davis in the unusual series, which features a world in which the moon has exploded into three causing many on Earth to believe the end of the world is near and to act accordingly, Zap2it.com reported .
"It's hard to describe what (the show) is, exactly," said "The House of Mirth" star. "You either love it or you don't, and I do. I find it very appealing. It's very idiosyncratic, very different from a lot of what you see."
ABC Family is taking a chance on the quirky series, whose premiere Sunday featured characters mowing their grass in the nude and others fleeing to embrace their dreams in the light of an possible impending disaster, Zap2it said.
The series is also new ground for McGovern, who prior to her starring role on "Moons" had focused mainly on films and only ventured into TV with the short-lived 2003 series "The Brotherhood of Poland, New Hampshire," the Web site said.