It's a great mystery where tiger sharks give birth. One team of scientists deploys an arsenal of new technology to find out, but they need to meet some of Bahamas' biggest tiger shark mothers face-to-face for it to work.

In 2012, Michelle Jewell documented one of the largest great white mating scars ever recorded. Recently similar marks have appeared, leading her to believe this is a possible mating ground and that mega-shark El Diablo has returned to South Africa.