Drummer arrives on Ceres to aid the relief effort. Holden tries to convince Avasarala to release crucial information that might avert catastrophe. Amos and Bobbie get a little R&R. Naomi has a difficult and long-awaited reunion.
Inners and Belters fight side by side with the crew of the Rocinante in a last, massive, desperate battle with Marco and his Free Navy, with the fate of the Solar System, the Ring Gates, and of all humanity hanging in the balance.