The Scorpion King: Rise of a Warrior

Mathayus aims to avenge the death of his father at the hand of Sargon, now king of Akkadian Empire, by taking service in his Black Scorpions squad. After completing his training he is tasked by Sargon to kill Noah, Mathayus's own brother. He saves him and escapes the city, but a magic arrow follows them and kills Noah.