Destiny is a fickle thing. One minute Rory is fighting for her life, and the next her dead best friend is appearing before her eyes. Vixen might not be the only person back from the grave, either.

Unit 3's mission to find closure comes to an end, inducing delight and heartache on an unbelievable scale. Blood relations in an apocalyptic world can have a powerful influence — an influence that will test the bonds within Unit 3 and ask them what is most important: their safety, or their ties to the Last.

All the while, a plan to reclaim the avian Hybrids' freedom unfolds, conducted by none other than Vixen's own unit.