The Marine 3: Homefront is about Jake Carter - a sergeant of United States Marine Corps Force Recon. After completing the mission in Central America, he comes back to his hometown-rural area and spends time taking care of his two sisters. Shortly after, Lilly and boyfriend are kidnapped, Jake has to rescue his sister. Surprisingly, while he was trying to rescue his sisters, he discovered a terrorist plot to attack the US from an university professor. And Jake must do whatever necessary to save his sister and prevent the terrorist plot before it’s too late.