Thelovingfamilylivesin a prehistoricagefilledwithdangerouscreaturesandearthshakingevents.
Facedwiththeendoftheworldastheyknewit, theywereforcedtoleavehome, aidedby a strangernamedGuy, playedbyRyanReynolds, whobecame a partoftheirfamilyastheysurvived a bonkersperiodintheirlives.
Thecrudesare a tightknitfamilywholiketodoeverythingtogether, courageousandloyal.