Forward to the Past

 is the twenty-seventh episode of the second season of Star Teens Unite!.

Summary
The Star Teens travel back in the time of 1980's where they meet their precursors (Stella, Enid, Leandra, Alicia, Liza, Sonja, and Shelly) who were killed by Vampira's monster minions, the Peace-Killers, a decade before the current Star Teens were born. Together the current and deceased Star Teens will join forces to stop the invasion in Arco Iris.

Major Events
Current Star Teens visiting their deceased precursors during the 1980's

Characters

 * Ella
 * Inidra
 * Sandra
 * Felicia
 * Lisa
 * Tanya
 * Sheila
 * Queen Vampira
 * Peace Killers
 * Stella, Enid, Leandra, Alicia, Liza, Sonja, and Shelly

Voice Cast

 * Aimee Carrero - Tanya
 * Cree Summer - Queen Vampira, Shelly
 * Grey Griffin - Sandra, Stella, Leandra, Sonja
 * Kari Wahlgren - Ella
 * Kate Micucci - Inidra
 * Kimberly Brooks - Sheila
 * Stephanie Sheh - Liza
 * Tara Strong - Felicia, Enid, Alicia
 * Vyvan Pham - Lisa

Trivia

 * Twelfth time the girls are wearing Star Teens masks before becoming Star Teens, and the fourth episode so far where the girls are masked entirely during this episode (the first three being Masked in Seattle, Terror of the Woods, and The Princess Brat). Here, the girls are masked as the Star Teens start their own ritual at Ella's basement. Near the episode's conclusion, when they return into normal girls, their faces are still masked as they thank their old precursors and hang out with them.
 * This marked the second appearance of their late precursors, first time as they were in the 2000's. Here, Stella, Enid, Leandra, Alicia, Liza, Sonja, and Shelly have their same ages as Ella, Inidra, Sandra, Felicia, Lisa, Tanya, and Sheila. Ella and Stella look alike, but the only difference is that Stella is a blonde. Inidra and Enid are both goths, except that Enid's hair has long blue-dyed black hair. Sandra and Leandra both have the same hairdo, but Leandra's hair is an orange color. Felicia and Alicia are similar to each other, but Alicia's hair is just a chin-length and her hair is a darker blond. While Lisa is of Japanese descent, Liza is of Chinese descent, and her hair is much longer than Lisa's. Tanya and Sonja look alike, but Sonja's skin color is white, her hair is tan, and her eye color is green. Shelly is much skinnier than Sheila, and back of her head is shaved off.