Underwater, the ultimate weapon is sound.

The undersea world is an unseen battleground. Join Dr. Robert Ballard as he reveals how technology, commerce and conflict have shaped 150 years of endless struggle for supremacy of the seas — not on the surface but at the very bottom of the ocean.

Producer/Director

Tom Jennings

Executive Producers

Peter Schnall

Hilary Sio

Peter Davidson

Supervising Producer

Hilary Sio

Editor

Rachel Kittner

Associate Producer

Glenn C. Reimer

Coordinating Producer

Tina Vér

Narrator

Robert Ballard

Music Composed By

Gary Pozner

Cinematographers

Brett Wiley

Mark Petersson

Slawomir Gruenberg

Steve Foote

Brian Dowley

Joseph Vitagliano

Sound Recordists

Bob Sullivan

Judith Karp

Erika Street

John H. Cameron

David Keene

George Shafnacker

Archival Researcher

Renee A. Fischer

Grip/Gaffer

Shaka Brookes

Assistant Editor

Erik Zimmerman

Production Assistants

Georgina Crawford

Elizabeth Hottel

Isold Uggadottir

Motion Control Camera

Ralph Pitre

Creative Group

On-Line Editor

Travis Antolik

Caterini Studios

Animation And Graphics

Paul Ranson

Ailanthus Inc.

Sonalysts Studios

Mixer & Sound Design

Pat Donahue

Caterini Studios

Legal Services

Ken Weinrub

Matthew Lefferts

Franklin, Weinrib, Rudell & Vassalo P.C.

Production Accountant

Brian Minahan

Special Thanks:

Peter A. Huchthausen

Norman Polmar

Dr. Owen R. Cote Jr

Robert Waring Herrick

Washington Navy Yard, Washington, D.C.

Carderock Division, Naval Sea Systems Command

Cornell Bioacoustics Research Program

Submarine Force Museum, Groton, CT

Royal Navy Submarine Museum & Archives, Gosport, UK

Southampton Oceanographic Centre, UK

MIT Security Studies Program

U.S. Naval Historical Center

Woods Hole Oceanographic Institution

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—For National Geographic Channel—

Executive Producer, NGC-US

John Bowman

Supervising Producer

Martha Conboy

Researchers

Susan Kolodziejczy