The top 8 compete Monday 8/7c! Catch up now.
Each week, we travel on the open seas with a group of daring marine biologists who have devoted their lives to tracking down the ocean's top predators and hand-tagging them with cutting edge satellite transmitters. Watch as these scientists travel to the shores of Brazil to investigate bull sharks' sudden attacks on surfers. The exotic locations, the revealing scientific discoveries and the often emotional relationships between cast members make this unique series as beautiful and dramatic as it is extreme.
One-hour alternative series