Steve Backshall meets the hammerhead shark, a shark with some seriously super senses. He dives alongside one in the warm waters of the Bahamas before heading to his shark lab to reveal how their bizarrely shaped head allows them to detect electrical fields given off by their prey.

Steve Backshall reveals the super sucker of all sharks, the nurse shark. This shark has a taste for shellfish and armoured crustaceans. In Mexico, Steve finds one resting amongst the coral, and explains how the nurse shark uses specialist sensory barbells to detect its prey in the sand or crevices. However, to understand how it actually eats its prey, we join Steve in his Shark Lab.

This time, he meets the snappiest shark in the world - the lemon shark. It scours the sandy seabed for food, but how does it get a good grip on hidden prey? Steve heads to the Bahamas in the Caribbean to dive with these feisty sharks. He heads down on his dive with a time slice rig to film the lemon shark's bite in three dimensions before heading into his shark lab to analyse it.