About 72 Hours Season 1, Episode 2 :

Dropped in a 90km stretch of untamed coastline, three teams composed of three strangers must navigate through thick forests, limestone cliffs and massive sand dunes in order to locate a briefcase full of cash in just 72 hours. All they have to accompany them in their quest for $100,000 are their teammates, the clothes on their backs, a GPS and one bottle of water.