For the fifth series, two separate groups are abandoned at opposite ends of a remote uninhabited island in the Pacific Ocean. The 16 Islanders face extreme tropical weather, limited resources and environmental hazards - with none of the home comforts everyone relies upon. The first group of castaways are wealthy professionals living off an average income of £100,000 a year - a wage earned by a fraction of Brits. The opposite group of castaways earn below the UK national average wage. The series sets out to look at the issue of wealth disparity, and whether living with vastly different economic circumstances at home has an influence on our ability to cope in the wild. When challenged to start again from nothing, who is better equipped to thrive?