In the early 21st century, mankind has colonized the oceans. The United Earth Oceans Organization enlists Captain Nathan Bridger and the submarine seaQuest DSV to keep the peace and explore the last frontier on Earth.

As part of a deal with an intelligence agency to look for his missing brother, a renegade pilot goes on missions with an advanced battle helicopter.

As part of a deal with an intelligence agency to look for his missing brother, a renegade pilot goes on missions with an advanced battle helicopter.

In the early 21st century, mankind has colonized the oceans. The United Earth Oceans Organization enlists Captain Nathan Bridger and the submarine seaQuest DSV to keep the peace and explore the last frontier on Earth.