Sister's Keeper

Aiden, a former Marine with unmatched combat skills, has always believed in solving problems peacefully. But when his sister, Skye, is kidnapped by a dangerous group of ruthless hunters, Aiden is forced to go to war, no longer as the kind-hearted man he once was, but as the protector she desperately needs. Armed with nothing but his wits and his weaponry, Aiden infiltrates the hunters' camp, taking down their sentries one by one, and rescues Skye from their clutches.