A Recurring Nightmare : Season 2 Episode 13

Because her mother died when she was a baby, Yuna does not remember her face. On a certain night, Stitch finds out, and Experiment 276 (Remmy) entered Yuuna's dreams and turns it into a nightmare. Stitch, Jumba and Pleakley rush after 276 to get Remmy out and save Yuna. Ultimately Remmy is captured and he allows Yuna to see her mother's face.