Induction

Four NASA astronauts en route to the moon experience a catastrophic accident. Declared dead to the world, they awaken in a secret underwater base - rescued by a long-hidden organization born from confiscated Tesla tech, Einstein's hidden breakthroughs, and decades of appropriated world technologies since World War I, cloaked behind the conspiracy theories it deliberately fuels.
But their "accident" was no accident.
As suspicion erupts between superpowers and deadly tensions skyrocket toward global war, the crew is forcefully inducted into the organization. They must abandon their past lives, rapidly master advanced tech, and uncover the sabotage that destroyed their ship - and stole them from their families - before the world erupts into all-out war.
Induction - Book One of the Conspiracy Theory Corps
The conspiracy is real... and it's only the beginning.