Supergirl Season 6, Episode 8, "Welcome Back, Kara," focuses on Kara's challenging return from the Phantom Zone as she struggles with psychological trauma. While Kara battles PTSD and adjusts to her life in National City, her father, Zor-El, struggles with his new life on Earth and causes an ecological incident. Read the full analysis at Golden Spiral Media . MOS 148 - S6E8 - Welcome Back, Kara! - Golden Spiral Media