J.H. WYMAN: So near the end of last season we coined a term called a “myth-alone.” It sounds crazy, but it makes perfect sense. “White Tulip” is a perfect example of a myth-alone – you're watching a compelling story, and it’s FRINGE-like, and you'll get the benefit of that creepiness, and that's a far out idea – but you're also going to have the through-lines of the mythology of Walter dealing with the secret of Peter. The response for those kinds of episodes was really overwhelming from our fans, and that was a large get for us as far as a realization.You can read the full article at ComicBookMovie.com
JEFF PINKNER: With myth-alones we're advancing our characters’ journey while every episode has a beginning, a middle and an end, so if you only watch one out of every five episodes, you can enjoy the case and you know enough about the characters to know, in a couple of minutes, where they are, and get sucked into their internal drama. For the more regular fans of the show, the narrative is constantly evolving while they're seeing the little story of the week.
ComicBookMovie.com has an exclusive interview with Fringe executive producers Jeff Pinkner and J.H. Wyman on the writing and evolution of the series. One of the important elements of the Fringe storytelling is the evolution of the "Myth-alone" - a hybrid of a stand-alone episode and a mythology episode: