Following a firefight with Cylon Centurions and the death of her spiritual advisor Elosha, President Laura Roslin treks onward with her confederates in search of the Tomb of Athena. Heavy rain and Kobol's rugged terrain make the journey difficult for all except the tireless Sharon.
Tom Zarek again butts heads with Lee Adama, inspiring Zarek's henchman Meier to consider drastic measures that will clear the path to power for his old friend.
Meanwhile, aboard the Galactica, Gaius Baltar questions his sanity as Number Six toys with him, and Commander Adama mounts a rescue mission to Kobol.
Adama enlists presidential aide Billy Keikeya to join his quest for peace with the rebels. After discovering Elosha's grave on Kobol, the Galactica landing party continues its search and finally intercepts Roslin and her group. Putting aside old conflicts, Adama opens the door to peaceful reconciliation for all.
Meier, however, sees the detente between Adama and Roslin as a renewed threat to the rightful power of Tom Zarek, and he conspires with Sharon to murder Adama, Lee and the president.
Finding the ransacked tomb, the unified team struggles to unlock its secrets with the Arrow of Apollo. Before they can do so, however, Meier and Sharon spring their ambush, leaving everyone's fates uncertain as the triggers are pulled.
DAVID EICK & RONALD D. MOORE
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Get a sneak peek at the next episode of Z Nation, airing Friday at 10/9c on Syfy
Murphy proves he is the zombie Messiah and Charlie takes a bullet for him.