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The survivors work out how to call for help - but are faced with a treacherous climb; as some of the group begin to crack under the pressure, a third death - the most violent so far - warns that they are running out of time.
Eric McCormack
Kevin Anderson
Lydia Wilson
Sonja
Adam Long
Dan Maclean
Jan Le
Amy Maclean
Siobhán McSweeney
Lisa Davies
Peter Gadiot
Carlos Garcia Mendez
Carolina Guerra
Cora de Léon
Ólafur Darri Ólafsson