So you have Ellen in one moving timeframe, speaking with a clarity no Oracle ever knew but throwing in ellipses because John was there too, and you have Sam in the "current day," half-human and half-Hybrid, trying to negotiate the dim shadows of his life before, his life as a F5er, his life before the Nebula, and his life now, while in the throes of major medical trauma. Which is exactly what it's like to be an Oracle, which is why Dodona Selloi and Yolanda Brenn and the Hybrids and the Angels (Chip Six, Chip Gaius, Jump Elosha, Maelstrom Leoben) and every other prophet are so annoying. You're not made to know everything at once and neither were they.
So Sam plays out his time like the Hunger Artist, and Kara's trying to get him into surgery -- which might turn off these new memories -- while the Dylons are trying to learn about themselves. Secretly, though, she's also hoping for an explanation for her own shit, but of course she can't say that because nobody knows she found her dead body on Earth. In the same way that the Ellen/Cavil story is kinda really about Boomer -- and the Chief/Bill story is kinda really about Laura -- the Sam/Five story is really about Kara, in a way, because it's one of the more clear-cut moral dilemmas our girl's ever faced: let him talk himself to death in the vain hope that he'll spill her destiny (and thus absolve her of both her implication in the Harbinger of Death deal and her existential horror in being a third Thing) or save his life to the detriment of herself and the three Dylons.
Sam keeps going into weird seizures and losing track of shit and going aphasic, and just when Kara (as his legal tattooed wife) is done watching him slowly bleed to white and sends his ass to surgery, he mentions Daniel, Number Seven, which holds special significance for her. Afterwards, he wakes up brain dead, meaning that once again Kara has fucked not only herself, but also the Final Five, humanity, the Cylons, and generally the entire blueprint of whoever's pulling these strings. That's our girl!
In other news, Chief gets his job back and reveals to Bill that the Galactica is falling apart on a much more basic level than just weakened beams and struts, and offers a biological compound from the Baseship that will heal her, while also making her Cylon. Bill of course balks at this, but eventually comes around. And on Colonial One, Laura and Lee mourn the dead Quorum and decide to reboot representative Colonial government by ignoring the obsolete Twelve Colonies altogether and going with the Ships' Captains system . She also makes him the de facto President, secretly. Three decisions by Laura and Bill that I completely agree with, personally, but could have massive PR consequences.