As a result of a toxic "Black Rain" storm over Westerley, John and Pawter are pulled into the tunnels under Old Town, where they are coerced into participating in a dangerous criminal operation. Meanwhile, Dutch and D'avin find themselves trapped together on Lucy, where a transfer warrant forces them to confront the emotional fallout from the events with Dr. Jaegar.
In the Quad, a planetary system on the brink of a bloody interplanetary class war, a fun-loving trio of bounty hunters attempt to remain impartial as they chase deadly warrants.