Shark experts Dr. Riley Elliott and Kori Burkhardt put on a one-of-a-kind shark competition to determine which male Great White Shark is the alpha in a pack of massive adults. In the waters off New Zealand, they compare the sharks speed, hunting ability, and fearlessness to determine who has the swagger to swim away with a female shark.

After two fatal Great White shark attacks occurred off a small Mexican fishing village - including one in which a victim was decapitated - shark attack survivor Paul De Gelder joins shark investigator Brandon McMillan and local biologist Gador Mutaner to launch a plan to ID the killers and keep the villagers in the Sea of Cortez safe.