在這部勇奪艾美獎的精彩影集中，不幸遭敵人囚禁的陸戰隊員在多年後意外安全生還，但中央情報局探員懷疑他已經淪為恐怖份子。

Sea Patrol is an Australian television drama set on board HMAS Hammersley, a fictional patrol boat of the Royal Australian Navy. The series focuses on the ship and the lives of its crew members.

深入海底，藉助突破性的科技，探索深海中隱藏的祕密。

距今100年前，在日俄戰爭後，日本因為過度開採甲烷水合物導致海平面上升及板塊位移使得多數的國土沉入海中，並造成海上都市的增加。而海上都市不斷增加的結果就是使海上交通的流量增大並威脅海的安全。為了守護海洋，發展了特別由女性所擔當的「藍色人魚」這個職業，並成為大多數的女學生憧憬的目標。而來自長野縣的岬明乃與知名萌香，為了想要成為「藍色人魚」，進入了橫須賀市中專門培養藍色人魚的海洋高中就讀。

The military's brightest minds tackle the country's toughest legal challenges at the Marine Corps Base Quantico, where every attorney is trained as a prosecutor, a defense lawyer, an investigator, and a Marine. Working side-by-side, they serve their country with integrity while often putting aside ideals for the sake of the truth.