Complex sentence: Season four of Discovery Channel's "Dual Survival", scheduled to begin airing April 23,2014, follows Joseph Teti and Cody Lundin or Matt Graham and as they demonstrate survival skills in a variety of hypothetical scenarios in wilderness around the world.
Split into simpler sentences: Season four of Discovery Channel's "Dual Survival" will begin airing on April 23,2014. The series follows Cody Lundin (first four episodes), Matt Graham and Joseph Teti as they demonstrates survival skills in a variety of hypothetical scenarios in wilderness all over the world.