5.4 / 10
3
Marine biologist Dr Austin Gallagher searches for the holy grail of shark research -- the secret breeding grounds of tiger sharks.
Austin Gallagher
Self / Chief Scientist / CEO Beneath the Waves
Joe Romeiro
Self - Underwater Cinematographer
Yannis P. Papastamatiou
Self / Asst. Professor: Florida International University
Mike New
Narrator