Reformation by Cari Z

Garrett’s world is shattering. His family is scattered across the galaxy, with his beloved husband Jonah fighting for survival on Pandora against a dark and relentless fleet while Cody, their son, is risking his life on a dangerous journey aboard a Drifter ship to rescue his father. Meanwhile, Garrett’s father, Miles, is called back to lead the Alliance’s fleet against the so-called “pirates” threatening the Fringe, a move orchestrated by the treacherous president himself.
Death and destruction loom, and only a madman would dare to stand against the overwhelming power and corruption closing in on him.
It’s a good thing Garrett has never been sane.