Their goal is to prove that they can eat like kings in some of the most remote places on Earth.
"They are determined to take on this challenge with only the most basic equipment and without the conveniences of 21st century life. Josh is familiar with rifle hunting for food and Matt usually has a kitchen stocked with fine ingredients, but they have left all that behind and will attempt to serve up restaurant-quality food in the wild," the Discovery Channel said.
James' first foray into film came when he took a camera along when he was working as a possum trapper so he could show his friends and family what he got up to all day.
He demonstrated how to trap the pests before giving them "a little pat on the head with my Whispering Stick" a hammer.
He went on to make dozens of videos of his missions in the bush. Alone, or with his mates, he demonstrates everything from tracking, hunting and fishing to identifying edible native plants.
Born in Napier, he settled in Ross on the West Coast and runs Eco Rafting Adventures.
Co-star Tebbutt guest-presented Saturday Kitchen on BBC One, and co-hosted Market Kitchen: Big Adventure. He has also been a contributor to Saturday Kitchen and appeared on the Great British Menu.
James could not be reached for comment, but announced on his Facebook page yesterday it would soon air.
"I've been given the go-ahead to tell everyone what the deal is.
"I don't have a TV, so let me know what you reckon when it airs."