Marcus Fenix is the lead protagonist of the Gears of War series. Marcus is the son of Adam Fenix an engineering teacher. Marcus was a decorated hero during the Pendulum Wars and fought the Locust alongside an elite group of soliders for 10 years until the day he attempted to save his father. Not only did he fail to rescue his father but he was thrown in prison for leaving his post. Marcus was left to die in prison but was rescued by his friend Dom Santiago. He was promoted again to sergent and fought the locust hordes as part of Delta Squad throughout the Gears of War games. The series concludes with the 3rd game and Marcus once again leading a squad as they once and for all end the battle between humans, locust, and the lambent.