Eight volunteers travel the world to face various ordeals such as being stung by Amazonian ants, being buried alive, having to catch alligators, and so on. Echoes of SAS: Are You Tough Enough? and Fear Factor, but mostly a kind of Even More Extreme Dreams But With Benedict Allen Instead of Ben Fogle. Ricochet also make the Fogle series, which is more of a docusoap-type reality show, but there's a clear line of descent from one series to the other.
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