Extreme Contact

Encountering a hammerhead shark while diving in the Florida Keys.

Mehgan learns how alligators attack and the best way to approach them so they can be lifted.

The team members have close encounters with reef sharks, triggering a feeding frenzy while trying to remove a rusty hook from one.

Searching the Florida Keys for the giant grouper, one of the largest and most endangered fishes in the world.

Mehgan accompanies an injured sea turtle to a special hospital; Manny and Mark encounter a great alligator snapping turtle.

Searching for elusive lemon sharks in the Gulf of Mexico.

The team searches for the sailfish, but this is a dangerous mission because it has a long, sharp bill that it can use like a knife to slash and kill anything that gets too close.