Zac Efron has been rushed to hospital after being struck down with an infection.
The Greatest Showman star was filming Killing Zac Efron in Papua New Guinea when he contracted a "form of typhoid or similar bacterial infection".
Zac had to be rushed to hospital in Brisbane, Australia, in what was called a "life-or-death flight" to be treated by medical experts.
The actor was then admitted to the private St Andrews War Memorial Hospital "in a stable condition".
After receiving treatment for a number of days, Zac was given the all-clear to fly back to his home in the United States.
Dr Glenn McKay, Director of Medical Rescue, was unable to comment specifically but did confirm that his team "retrieved a US citizen in his 30s from PNG to Brisbane for medical attention in Australia".
The new show will follow the 32-year-old actor as he heads to the jungle on a remote island for 21 days and will be "off the grid" with nothing but basic gear and a guide partner.
Zac said: "I tend to thrive under extreme circumstances and seek out opportunities that challenge me on every level. I am excited to explore any uncharted territory and discover what unexpected adventure awaits!"
Zac has previous experience in the wild as in 2014, he appeared as a guest on Running Wild with Bear Grylls, where the two jumped out of a helicopter, trudged over rough terrain in the Catskills, and ate an earthworm.