介绍：一艘俄罗斯导弹潜艇在格陵兰海执行秘密任务时失踪，不知所踪北方舰队最年轻的司令维克托·沃罗宁前去搜寻，他的哥哥正是这艘失踪巡洋舰的指挥官。与此同时，由于极地站被毁，一头怪物出现在北方海域。

介绍：This is an adaptation of E. Lockhart’s best-selling young adult novel of the same name.　　The series focuses on the theme of the results of one’s mistakes and revolves around the affluent and seemingly perfect Sinclairs, who enjoy spending every summer gathering on their secret island. However, something strange happens to one of the members of the family, Cadence, in the summer of her 15th year. Two years later, she and the three other “Liars” Johnny, Mirren, and Gat re-emerge to stir Cadence to recall the incident. “A tragic love story and an amnesia thriller set on a privately owned island off the coast of Massachusetts,” the logline further elaborates.