I own nothing you recognize. Just playing with them for a while.
September knew when he pulled Walter and Peter Bishop from the icy waters of Lake Reiden that he had sealed his fate. All timelines would now lead him to the same future. He would lose himself, but he would, in the end, gain his son.
The queer sensation that had overtaken him when he saw Progeny XB-6783746 hadn't left him. His kind didn't have feelings, but the need for more information about the Progeny XB- 6783746 overwhelmed him. Upon further research, he found out that he was the male donor of genetic material for the Progeny. A little more studying and he found out both who the female material came from and that the child was slated for destruction. His brain had not developed like the rest. He was different and therefore seen as dangerous.
September had no idea why, but he felt he could not let that happen. As surely as the stunned freezing man sitting in snow at his feet would cross universes to save his son, September would break all the rules to save his.
But for now, as the timeline stood, the female donor would be born and he could go back to simply observing.
As he left Walter Bishop with the only answer he could give, he knew they would meet again. He would spend four lifetimes protecting this family. Death, life, birth, suicide, murder, rape, and madness would visit them. A wrong turn at any time and the house of cards he had built up tonight would come crashing down and Progeny XB-6783746 would cease to exist. Now that he had hidden the boy, the others would take after the Bishops to make that happen.
He looked back at Walter Bishop clutching the boy they both knew wasn't his son and made up his mind. This family had to endure. This family had to survive and he would have to do anything in his power to make that happen. After all, it was the great Bishop mind that would cause the anomaly in Progeny XB-6783746. And one of them couldn't survive without the others.
His boy must live. His son. After all, his son, his boy, would save them all.