两万年前的冰河时代，超级不靠谱的希德（约翰·雷吉扎莫 John Leguizamo 配音）带领海狸、食蚁兽、雕齿兽宝宝们展开野营旅行。希德自称森林的主人，大自然的儿子，但看起来它完全没有任何野外生存的经验，先是被马蜂狠命地蜇了一通，还跌落悬崖，接着小家伙们又在它的带领下成功迷路，希德还误尝有毒植物脑袋肿得像个皮球。虽然承受着来自小家伙们的不信任感和鄙视，可是这个超级自信的家伙丝毫不为所动，继续在它犯傻的道路上越走越远。此时此刻，无论是希德还是小宝宝们都没想到，它的无心举止将创造怎样神奇的地貌与历史……...
Loving girlfriend, family fortune, breakout movie role: he's got it all. Until an app awakens a powerful new yearning. While in Rome to shoot his first movie, Niccolò becomes obsessed and sent into a self-destructive spiral....
