Three teenagers ... five continents ... one mission: to take the pulse of our planet and report back to their generation. Are they up to the task? A Year on Earth chronicles the story of three American teens: Jamie (18) from Keller, Texas; Arsen (17) from Canyon, California; and Tyler (16) from Lincoln, Massachusetts. They have little in common except for a shared concern that time is running out for the planet. Nominated by their respective science teachers, the teens join research projects around the globe to work with scientists supported by Earthwatch Institute. These three teens traded a year at school for a classroom without walls to study the largest, most pressing environmental issues of our time.

The two-part special debuts on the Discovery Kids Channel on Sunday, December 3 from 5-6:30 PM (ET) repeating from 9-10:30 PM (ET) with part two debuting the following Sunday, December 10 from 5-6 PM (ET) repeating from 9-10 PM (ET).