"Socially non-gendered BII operative Nightingale Spence is stuck working alongside their nemesis. In Miami, ANI Agent Greg Hull faces up to the aftermath of past decisions, and Martian Marine Corps Captain Susan Kennedy finds unexpected cause to brush up on her diplomacy.
Meanwhile, Craig Campbell is seeking redemption. Admittedly, mending fences with a certain canary might be a good bit simpler if he could avoid adding to the existing sources of stress…"