Dr. Domeier makes a discovery that brings him a step closer to proving his theory that great whites go to Guadalupe Island to mate.
The team lands two more enormous sharks.
Fishermen seek out adult white sharks to take DNA samples and insert tracking devices.
The team works to draw blood from a mature female.
Dr. Domeier puts his tagging technology to the test.
The crew discovers two species of squid in the shared offshore foraging area that the Doc believes to be a large part of the sharks' diets.
The crew catches and tags a large male off the coast of Guadalupe Island, Mexico.
A great white gets caught in the line and Cap. Brett must hang from the bow to free the shark before it suffocates.
The crew uses quick problem-solving skills and ingenuity to land their first shark.
The female sharks' stealth makes them difficult for the crew to catch.
Actor Paul Walker helps the team capture a 16-foot female.