Brady Garrett is back on Earth. He's living with his partner Cam and they're raising his sister Lucy together. Life is better than some feral reffo from Kopa has any right to hope, and Brady knows it. He's even grateful for it, most of the time. He loves Cam, even though he's afraid that he's not good enough for him, and he's still having nightmares about the alien Faceless.
Cameron Rushton loved being a pilot once, and he still feels the pull of the starlight. He's building a life with Brady now, and with Lucy. Life is good, even if it's not without its complications. Both Brady and Cam are dealing with the endless cycle of interviews, tests, and questions that the military hierarchy hopes will reveal the secrets of the aliens who could very easily destroy humanity. They have each other though, and together they're making it work.
But from out in the black, Kai-Ren is still watching and everything Brady and Cam think they've won, they stand to lose all over again.