"Matt "Mace" Mason is attempting to put the army behind him, building a life for himself training anti-poaching forces on a Kenyan game reserve. He's looking forward to meeting up with his eldest child, Jo, who's graduated naval college and taken a summer job working on a billionaire's yacht in the Red Sea.
But then he receives a call informing him that Jo's boat is missing, likely abducted by Somali pirates. Mason must call in favors from old contacts as he follows Jo's trail. She isn't the target of the abduction, so she won't be worth keeping by the pirates for long. But she is still Matt Mason's daughter, and she knows she needs to survive to fight . . ."