The Empire State is dying. The Fissure connecting the pocket universe to New York has vanished, plunging the city into a deep freeze and the populace are demanding a return to Prohibition and rationing as energy supplies dwindle.

Meanwhile, in 1954 New York, the political dynamic has changed and Nimrod finds his department subsumed by a new group, Atoms For Peace, led by the mysterious Evelyn McHale.

As Rad uncovers a new threat to his city, Atoms For Peace prepare their army for a transdimensional invasion. Their goal: total conquest--or destruction--of the Empire State.