Out of a 25-year battle between angels and humans comes an unlikely hope for mankind. In the Season 2, an unexpected attack on Gabriel';;;;;;;;;;;s Aerie puts a newly freed Alex and Noma on the road to New Delphi, a dangerous and mysterious city. Meanwhile, Claire begins to understand the breadth of her responsibility; and Michael stumbles upon a quaint southern town whose residents have inexplicably managed to insulate themselves from the fallout of the Extermination War.