[VIDEO IN EXTENDED ARTICLE]

The first TV ad of the mayor’s race will hit the airwaves Monday, skewering its front-runner, City Council Speaker Christine Quinn.

The 30-second spot, heavy with smoke and ominous music, paints Quinn as a backroom dealer, who has misled the public about her motives and will do anything to get ahead.

“She wants you to think that she’s a progressive. But on the issues New Yorkers care most about she is always on the wrong side: on living wage, her flip-flop on paid sick leave and on term limits,” says a narrator, as a picture of Quinn’s disembodied head floats through the smoke.

“All that’s clear as the smoke lifts is her political ambition,” says the voice. “When Christine Quinn doesn’t support our values, how can you support her for mayor?”

The spot will begin airing Monday on cable stations, including MSNBC, Cablevision and NY1 as part of an initial $250,000 buy, a spokeswoman said.

But the ad isn’t coming from one of Quinn’s 2013 rivals.

Instead, it was paid for by New York City is Not for Sale, a new Political Action Committee launched with a singular mission: to make sure “Anybody but Quinn” is elected mayor.

Its founding members are Arthur Cheliotes, the president of the Communications Workers of America union Local 1180, Hugo Neu Corporation CEO Wendy Neu, and NYCLASS, a group of animals rights activists who have demanded an end to horse-drawn carriage rides, which Quinn supports.

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