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 "fury".
 * Third time the Ella, Inidra, Sandra, Felicia, Lisa, Tanya, and Sheila wear Star Teen face masks, but not' their Star Teen outfits until later in this episode; the other times being "Masked in Seattle and Reeking Havoc. Here, the girls wear their masks to prevent breathing wildfire smoke.