In Season 1, Episode 8, titled "Narkina 5," the story shifts into its third major arc as the Empire's grip tightens across the galaxy. The Prison on Narkina 5

Following his unjust six-year sentence on Niamos, Cassian is transported to a high-security Imperial prison on the water moon under the alias "Keef Girgo". 'Andor' Recap: Season 1, Episode 8 “Narkina 5”