Geminos. Josh Brannon Series, #2

Reality fractures. Timelines collide. British operative Josh Brannon races to unravel an unearthly mystery no one could see coming, not even him. Now, he must face his nemesis. Josh Brannon works for the British government. He's an intelligence operative with a special set of deadly skills. And he has a secret - an extraordinary secret not even his government employer knows about. A routine counterterrorism operation in London turns deadly when a colleague is suspiciously murdered, leading Brannon to an impossible discovery: a face from his past who shouldn't exist, one that sets off a cascade of reality-bending events that challenges everything he knows. Ordered off the case, Brannon is reassigned to investigate a biotech corporation - a conspiracy capable of enslaving millions.
But the deeper he digs, the closer his investigation unexpectedly intertwines with the secret of his past. Enter Sofia Du Bois: brilliant, idealistic, and fighting a shadow war. Their paths cross once again. And when Sofia is kidnapped, Brannon's investigation transforms into a desperate rescue mission; battling corrupt superiors, hired assassins, and corporate killers all while encountering fractured timelines.
Narrowly missing death, Brannon is finally brought face-to-face with something never before expected.