Merrick is a 42-year-old Captain and Commander, leading the Ghost team.

Keegan is a 38-year-old Sergeant and Sniper for the Ghosts, he's serious.

Hesh is a 28-year-old Sergeant, the Older brother of Logan, he's protective.

Logan is a 26-year-old Sergeant, he's Hesh's younger brother, and he's quiet.

Riley is a male German Shepherd dog, well trained. 

They are the Ghosts, an elite Special Force. having to survive a battle against cryptic creatures who existed before the dinosaurs.