根据真实事件改编，一个充满活力的十几岁的女孩莎拉，她期待着她的18岁生日，这样她就可以离开她控制她的父亲唐（贾德·尼尔森）。但在她吹灭蜡烛 之前，唐把她关在他们家的地下室里，她的世界变得非常黑暗。当唐试图说服妻子艾琳（乔莉·费希尔饰）莎拉离家出走时，他会偷偷到地下室探望 她，折磨并强奸她，而艾琳和她的妹妹艾米（艾米丽·托普饰）继续住在楼上。随着时间的流逝，莎拉生下了几个孩子，独自在地下室里 。唐最终抚养了他们最小的儿子，把他留在了门阶上，艾琳发现了他和一张便条，便条上是莎拉写的，说那是她的儿子，她不能照顾他，艾 琳最终接受了唐关于莎拉的说法。在被囚禁禁了几十年之后，莎拉终于逃脱了，她的家人知道了20年来发生在他们脚下的毁灭性真相。

　　Alaska Rose has had a difficult few years since her mom left the family four years prior; acting out, rebelling against her single dad, Conner, getting into trouble in school and worse. But when she turns eighteen, Alaska finds herself in front of a judge in adult court for some of the same out-of-control behavior. In lieu of a jail sentence, Alaska is ordered to do community service in an assisted living facility where she is assigned to Mrs. Foster, an elderly resident who is unapproachable at best and hostile at her worst. Will Mrs. Foster be Alaska's undoing or will she simply be another obstacle on the road to the headstrong girl's freedom? As Alaska tries to minimally fulfill her court obligation and dodge actual jail time, she deals with peer pressure, static from her family, outside influences and demons from her past. Can she navigate the tumult and re-discover a relationship with God and her family or will she remain caught in the cycle of bad choices and lose what little of either is left?

本片描述的是在黑暗的中世纪，女王巴夫莫达听说一个即将诞生的女婴会在将来推翻她的统治成为王位的合法继承人，于是下令将王国内所有的怀孕妇女全部处死。同一时间，一个叫达南的刚出生女婴被送到了木筏上顺流而下，矮小的内尔温族人威洛（沃维克?戴维斯 Warwick Davis 饰）将她救了起来。威洛想将达南送归戴基尼人，于是带着她上路了。巴夫莫达女王得知消息后派出索莎公主和凯尔将军前往抓捕威洛他们。达南最终命运如何，她是否就是那位将来会推翻巴夫莫达统治的人？