The ice hauler Canterbury was destroyed; James Holden and a small crew became the central witnesses.
Detective Joe Miller chased Julie Mao's trail into the same conspiracy.
The protomolecule - alien tech weaponized by human factions - is real and catastrophic.
Season 1 ends with the Rocinante crew (Holden, Naomi, Alex, Amos) and Miller confronting the Eros disaster. The solar system still does not fully understand what the protomolecule is.
Fred Johnson, the OPA, UN, and MCRN all have incomplete pictures and maximal distrust.
Julie Mao's fate is tied to the protomolecule story Miller chased.
Canterbury destroyed; Rocinante born.
Miller and Julie/protomolecule.
Eros horror.
Season bridge: everything above is end of Season 1. S02E01 ("Safe") has not started.
Cutoff discipline: every fact above ends at S01E10. Do not import anything from S02E01 ("Safe") or later.