Renowned shark expert Dr. Riley Elliott and his crack team of instructors are determined to find the next master of apex predators; during a six-week course, the skills of eight rookies will be tested, proving what it takes to become apart of this elite team.

The recruits' courage and skills are tested when they are trained to freedive into a swarm of sharks; Brad struggles with not being at the front of the pack; Sophia has a risky encounter with a reef shark.

It's time for the recruits to prove that they can work hands-on with one of the most aggressive sharks in the world, the bull shark; Riley calls out Ryan whose confidence doesn't quite match his performance.

It's hammerhead time as the recruits come face-to-face with one of the rarest and largest sharks; Riley puts the team's trust in him to the test; Juliana steps things up; Randy shows what he's made of.