Steve reaches the tropical islands of the Bahamas. His crew board a dive boat with their high-tech gear, which helps demonstrate the science of a shark bite. A tiger shark gets a little too close for comfort.

On a trip to Mexico, Steve Backshall takes to the water in search of a monster of the deep seas. Later, he takes to the deadliest desert stalking the biggest wasp in the world.

Steve and his team take to the waters of British Columbia in search of more monsters of the deep seas. Steve tracks the weirdest looking fish on the planet, armed with chisel-like teeth, comes face to face with a giant Pacific octopus and gets the surprise of his life when he goes kayaking with killer whales.

Still in Canada Steve finds the biggest sea lion in the world; is on the trail of the smelliest animal on the planet, the skunk; then tries his hand at becoming a racoon; and tracks the powerful black bear.

Steve and the crew are on a mission to find the largest cat in South America - the awesome jaguar.

Steve gets strangled by a giant boa, is struck dumb by the strike speed of a viper and plays hide and seek with a deadly bushmaster. He also gets hands-on with poisonous frog and nearly gets a nip from a blood-sucking vampire.