Disney has released a poster for their upcoming Phineas and Ferb: Star Wars crossover episode. The story for this special runs parallel to the original 1977 film, A New Hope, and it sounds like it's going to be a really fun episode. Here's a detailed synopsis:

The episode's story begins a long time ago, in a galaxy far, far away -- in summer. Phineas and Ferb are living happily on Tatooine, just one moisture farm over from Luke Skywalker. They love simply hanging out and creating new adventures under the twin suns, however, they find themselves thrust into a global rebellion when the plans for blowing up the Death Star accidentally fall into their hands. Now that fate has suddenly pulled them into the fight for freedom, they must go in search of a pilot who can take them to the Rebels so they can hand over the plans. Complicating matters, Candace -- the boys' sister -- has a Stormtrooper-like intent on "busting rebels" who chase Phineas and Ferb across the galaxy in hopes of retrieving the Death Star plans. Meanwhile, back on the Death Star, Dr. Darth Enshmirtz, a low level Darth, has created a Force-powered "Sith-inator" that he plans to use against the Rebel Alliance. Agent P, working undercover for the Rebellion, is dispatched to stop him, but quickly gets trapped in carbonite. Then, things take a startling turn when Ferb is accidentally hit by the full blast of Dr. Darth Enschmirtz's "inator" and becomes...an evil Sith.

When talking about this episode, series creators Dan Povenmire and Jeff "Swampy" Marsh, had this to say:

"Our story all takes place as if you had a slightly wider shot, you could see our characters. Or if you just waited around five minutes after this [Star Wars] storyline, our characters would pass through, which was really really fun to do."

The Phineas and Ferb Marvel crossover episode was actually really fun, and this Star Wars episode should be good. I've got kids that love this show, so I'll definitely be watching it.

Phineas and Ferb: Star Wars, will be unveiled for the first time at Star Wars Weekends at Disney’s Hollywood Studios at the Walt Disney World Resort in Florida today.