Valiant

FEAR THE FRONTIER. FIGHT FOR FREEDOM. A GALACTIC STRUGGLE.
One man's obsession to save his family collides with an ancient alien civilization's secret agenda and threatens Earth's fragile galactic peace.
The passengers and crew of a galactic cruise ship mysteriously vanish. Ten thousand citizens of Earth. 
Without warning. 
Without a trace. 
Pushing the fragile peace between the four major alien civilizations to the brink of war.
For Commander Zen Dax of Earth's United Space Fleet it's personal. Solving the mystery may lead him to his missing wife and son. Or bring destruction upon humanity.
Standing in the way of his desperate plan to save them is a galaxy of conspirators, assassins, spies, saboteurs, killer robots, lethal renegade smugglers, merciless alien factions, and even Dax's grizzled captain of USF warship Valiant.
To save his family, can Dax convince his captain and the crew of Valiant to defy their masters and risk a galactic war to find the truth?