"New Girl" season 3 premieres on September 17 on Fox. What will the upcoming season, and specifically the premiere, have in store for the new relationship between Nick and Jess?

In the season premiere, Zap2it.com reports that Nick and Jess decide to head south for a romantic vacation to Mexico. However, as reported by TVLine, Nick forgets to bring his passport.

The only option the two lovebirds have is to get Schmidt and Winston to come to the rescue. According to Zap2it, all of this results in many hilarious encounters, including ones with a taser and an aggressive security guard.

The website also reports that viewers will get to meet Jess' sister in season 3, TVGuide.com reports. Zooey Deschanel, who plays Jess, has a real actress sister - will she get cast as her sister on the show too? Emily Deschanel is the star of "Bones," and the girls both work for the same network.

However, Zap2it reports that it may be very difficult to cast the busy Emily as Jess' sister.

"New Girl" series creator Liz Meriwether teases the character of Jess' sister is going to be "trouble" and "fun."

We can't wait!