While Pete and Myka go after someone using an artifact to induce Alzheimer’s, Claudia goes on her first case as a full agent with Steve to track down Typhoid Mary’s…

Jack is forced to revisit a rough patch in his marriage when he finds an unfinished song by Lyndy in her old guitar case.

As Earth strategizes a costly ploy to gain advantage in the war against Mars, Anna struggles to convince Sorrento-Gillis to do the right thing. Avasarala and Bobbie seek refuge aboard…