Steve meets one of the ocean's greatest sharks. The oceanic whitetip is an adventurer of the abyss. Steve and his crew track down this nautical nomad in the Pacific Ocean off the coast of Hawaii. In the empty ocean, they are constantly on the move searching for food, relying on some vital features - their fins. Back in Steve's Shark Lab, he reveals how the shark uses its different fins for perfect power and sensitive steering.

Steve looks at a shark with superpowers. The epaulette shark is a small shark that lives in shallow, tidal waters and it is able to survive out of water for a long period of time, Steve heads into his Shark Lab to show just how they manage it.

Bold, bullish and packed with bucket loads of bite, the bull shark is the most menacing shark out there. Steve Backshall comes face to face with these apex predators off the coast of Mexico, and reveals it's not just the ocean that they hunt in - they can also move into freshwater rivers and lakes, and have been found thousands of kilometres up the Amazon river. Back in Steve's Shark Lab, he reveals how the bull shark adapts to the varying salt levels using its very clever kidneys.