这是一部关于世界上最有标志性的三座热带岛屿的终极指南。 三座非常有标志性的岛屿，与大陆隔绝，生态系统自成一体。对与世隔绝的人以及岛上的野生生物而言，这些岛屿是如同天堂一般的存在，但是进入桃花源记中的理想世界是需要付出代价的。 世界上五分之四记录在案的灭绝都发生在岛屿之上，在这个快速改变的世界，岛屿可用来评估这颗星球的健康程度。在这部纪录片中，我们可以跟随镜头一起探索在这些岛屿上的野生动物、历史以及文化。
威尔·史密斯踏上直面生命极限的旅程。受到已故导师启发，用100天挑战不可能：滑雪横越南极、近距离捕捉巨蟒。为剧毒狼蛛取毒、攀登高山、潜入北极冰层之下。他将与专家们并肩同行，展开横跨地球两极、探索身心极限的震撼冒险。
节目历经三季，本季继续聚焦长沙解放西繁华商圈的警察工作日常，展现繁华都市的守护者群像。第四季节目将迎来全新的守护者联盟，由新任所长带领新一批的“三高”民警，同交警组、水警法医组、特巡警组等，不分时段、不分地域、不分人群，全力维护着城市秩序，保护着每一个人，共同守护解放西的繁荣和安全。
Lori Vallow was known to friends and family as a devoted mother of three, a loving wife, and a woman of God. But over the past three years, something went very wrong: Now Lori is in jail, waiting to stand trial for conspiracy to commit murder and first-degree murder in connection with the deaths of her fourth husband, her fifth husband’s wife, and her two youngest children. For the first time, Lori’s surviving son Colby steps forward to provide exclusive insight into his family’s backstory as well as their present-tense narrative as Lori faces justice. At the heart of this three-part series is a single burning question: how did a seemingly normal woman become the most notorious mother in America?
