Marina walks into their hideout where Julia is getting her first star tattoo in episode 1x02 "The Source of Magic". Quentin and Eliot find the safe house while tracking the stolen book in episode 1x03 "Consequences of Advanced Spellcasting". Julia and Marina talk about the putting the spell on Quentin and later Marina kicks Julia out after regaining her memories in episode 1x04 "The World in the Walls". Appears in 2 more episodes.
Julia shows Hannah her new safe house in episode 1x06 "Impractical Applications".
After arresting the woman who murdered his wife, Ben Lockwood orders the arrest & torture of all of the other aliens who were staying in the shelter with her. James & Nia arrive outside to stop the arrest and Brainy makes in impassioned plea to the other DEO agents in episode 4x20 "Will The Real Miss Tessmacher Please Stand Up?".