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It'sover150yearssinceclimbingdevelopedasasportandinthattimeBritain'sgreatcragshavebeenthoroughlyexplored.Intheirsearchforboldnewroutes,twoofScotland'sbestrockathletes,DaveMacLeodandAlanCassidy,travelsouthoftheBordertotheheartoftheEnglishclimbingscene. Inanastonishingweek,theyattempttwoinnovativefirstascents-onedeepundergroundandtheotherinahugecavern.Thisfilmfollowsthemastheyinchtheirwayfromdarknessintolight.