Cave Challenge Christmas Max investigates two seemingly-unconnected murders:

Max investigates two seemingly-unconnected murders: The former president of an Asian country

He reveals the skills that kept him safe working undercover in Northern Ireland

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A rare object has been found deep in the ice at the Arctic Circle

his escape aided by a series of broken street lamps

Cave Challenge Christmas Max investigates two seemingly-unconnected murders:A mysterious compass with a fifth direction transports a young boy to an extensive cave system filled with bats, treacherous drops and hidden dangers. Luckily, survival expert Bear Grylls is on hand to guide him safely out, facing his fears and gaining in confidence along the way.