You can find this episode dubbed on various streaming platforms: : Stream the full first season, including episode 5.
Upon her return to camp, Hakuei is betrayed by her own aide, Ryosai, who seeks to kill her and seize command of her troops. Magi: The Labyrinth of Magic (Dub) Episode 5
Just as Hakuei is about to be executed, Aladdin arrives and uses his immense powers to decimate the opposing army. He materializes the giant Djinn Ugo to crush Ryosai and save the Princess. You can find this episode dubbed on various