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Zac Efron

Duncan Gaudin/NBC

Zac Efron ate some worms and you can watch him do it! Efron appeared in the first episode of Running Wild with Bear Grylls, a new NBC reality series in which Bear Grylls takes celebrities on two-day excursions where their survival skills are put to the test. In Efron's case, the two dropped into the heart of the Catskill Mountains—literally dropped—because they jumped out of a helicopter.

"Should've packed my junk better," Efron said during the episode as he's parachuted through the sky.

He nailed the landing, despite the ill-packed "junk."

During the episode, Grylls and Efron discussed the star's rehab stint, his love of performing and ate a meal of worms because that's what you do when you're Running Wild. Oh, not just worms, but a worm omelet complete with the eggshells for vitamins and whatnot.

"That was so gross," Efron said.

Check it out above.

Running Wild with Bear Grylls airs Mondays at 8 p.m. on NBC.

(E! and NBC are both part of the NBCUniversal family.)