Beware the Dragon!

 is the thirty-eighth episode of the first season of Star Teens Unite!.

Summary
A horrifying fire-breathing dragon named Raseri burns forests in Arco Iris, causing a terrible haze. Can the White Knight and the Star Teens try to stop him?

Debuts

 * Raseri

Characters

 * Ella
 * Kevin/The White Knight
 * Inidra
 * Sandra
 * Felicia
 * Lisa
 * Tanya
 * Sheila
 * Bella
 * Trixie (Ella's mother)
 * Julie (Ella's younger sister)
 * Buru
 * King Amadeus
 * Princess Amelie
 * Raseri

Voice Cast

 * Aimee Carrero - Tanya
 * Ariel Winter - Julie
 * Colleen O'Shaughnessey - Trixie, Princess Amelie
 * Grey Delisle Griffin - Sandra
 * James Horan - Raseri
 * John Rhys Davies - King Amadeus
 * Kari Wahlgren - Ella
 * Kate Micucci - Inidra
 * Kimberly Brooks - Sheila
 * Susanne Blakeslee - Bella
 * Tara Strong - Felicia
 * Taylor Lautner - Kevin/The White Knight
 * Vanessa Marshall - Buru
 * Vyvan Pham - Lisa

Trivia

 * The fire-breathing dragon of Arco Iris, Raseri, debuts here. Raseri is a Swedish word for "dragon".
 * Third time the Ella, Inidra, Sandra, Felicia, Lisa, Tanya, and Sheila wear Star Teen face masks, but not in their Star Teen outfits until later in this episode. Here, the girls wear their masks to prevent breathing wildfire smoke.