'Planes,' in theaters now, was a major step in broadening the world of 'Cars.' Pixar and Disney are so confident with this new universe they're building that, during the D23 Expo, Disney chief creative officer John Lasseter previewed the next installment, 'Planes: Fire & Rescue.'

As Lasseter said, it's important to highlight the men and women who protect us from forest fires, after which he introduced director Bobs Gannaway and star Dane Cook to preview the film.

What if Dusty could never race again? Could he find a dream worth living for? These questions will help establish the story for 'Planes: Fire & Rescue,' which will see the main character of 'Planes' join a fire and rescue squad. "We're going to be doing a deep dive into, not just firefighting, but wildfire air attack," said Gannaway.

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Julie Bowen ('Modern Family'), one of the new cast members, plays Lil' Dipper, Dusty's biggest fan. "She likes him just a little too much," said Gannaway. "She talks faster than me." Dane Cook will be back as the voice of Dusty, who will trade in his racing stripes for his new firefighting exterior.

'Planes: Fire & Rescue' will be released on July 18, 2014.