A Stranger Forever

 is the 23th episode in the first season of Twelve Forever and the 23th episode overall in the series. It premiered on July 29, 2019 on Netflix.

Synopsis
When explorer and treasure hunter Captain Elmer arrives on Endless, Todd and Esther suspect he isn't what he seems.

Trivia

 * In this episode, Reggie claims that she is is the mayor of Endless. Either she's bragging about this or she's breaking the fourth wall that she owned the island since the pilot.
 * Reggie says that she'll move to Endless someday, however Reggie must be a legal adult to leave her home, but the show's topic is about Reggie and her friends going to a place where they can't grow up.
 * This episode also shows us that there may be more islands other than Endless.