Mr Hammond tries to take a picture of a blue whale, but gets too close - all that can be seen is a patch of blue! Andy heads to the Atlantic Ocean in his safari sub to get a new photo, learning all about the blue whale and its immense size in the process - but will he be able to take his picture and make it back in time?

Andy goes to Niue Island in the South Pacific to find out where sea kraits lay their eggs. Mr Hammond is keen to impress his brother, sea-life expert Professor Hammond, with an undersea fact. So Andy helps out by investigating the one fact the Professor doesn't know: where the sea kraits of Niue Island lay their eggs. His journey features an elaborate sea krait dance and takes him deep into the caverns underneath the island

When Andy inadvertently destroys some special, nutrient-rich mud for Safari World's new mudskippers, he has to find some more to replace it. He heads to the coast of southern Japan, where he encounters jumping mudskippers and a hidden egg burrow.

After Safari World's wood duck chicks get stuck in a hole halfway up a tall tree, Andy travels to North America to see how they deal with such a problem in the wild. After running into a hungry rat snake, two alligators and a star-nosed mole, Andy makes a surprising discovery about wood ducks.

At the opening of Safari World's new Galapagos dome, Andy finds that he can't answer a question about sea lions. So he travels across the world in his safari sub to find out how they deal with flies. But how will he reach the shore to get a closer look? And can he get back to Safari World before his talk begins?

Mr Hammond needs a picture of the sarcastic fringehead for his book about funny fish. But this aggressive fish, so-called for its large antennae, doesn't have a picture in the Safari World database. It's up to Andy to travel to the Californian coast to find one - but can he navigate the shells, octopuses and an angry fringehead to get a photo in time?

Mr Hammond has painted a picture of some flamingos and asks Andy to look after it. But when Andy tries to stand on one leg like a flamingo, he accidentally spills blue paint all over the painting! In order to put things right, Andy heads to the Andes to find some flamingos and make a replacement painting. But disaster strikes when a huge dust devil greets him on his arrival...

Andy is giving a talk on flying insects. His preparations are going well - until Mr Hammond asks him to pay special attention to where the damselfly lays its eggs. A flummoxed Andy heads to a river in the South of France, and after meeting a harvest mouse, a barn owl and a hungry frog, manages to find a pregnant damselfly and learn all about where they lay their eggs.

Andy is put in charge of caring for the frogspawn of the glass frog - but he has no idea how to look after it! So he embarks on a trip to Costa Rica in search of some wild glass frogs. After encountering a basilisk lizard and a hungry cricket, Andy finally meets one of the tiny amphibians and learns the secret to looking after their eggs.

Mr Hammond has just returned from a trip to Antarctica, where he set up a webcam to observe a Weddell seal and her newborn pup. But there's a problem with the webcam that stops Jen from getting a signal. Andy travels down to Antarctica to fix things - but finds that the ice is melting faster than it used to due to climate change, and the webcam is now floating on the water. It's up to Andy to retrieve the camera, find the seals and bring the footage home.

Jen has launched several flying camera drones that beam images of animals from across the globe back to Safari World. Mr Hammond notices some strange mud circles above the Atlantic Ocean - what animal could be making them? Andy decides to investigate and heads off to the coast of Florida to find out. Along the way, he meets some Cassiopeia jellyfish, razor fish and a pod of bottlenose dolphins.

When Andy accidently breaks Mr Hammond’s precious caiman eggshell, he heads to the lakes of Bolivia to find a new one and put things right. Although he manages to find a group of baby caimans in a nursery pool, the young reptiles and their mother have to travel across the grasslands to avoid the many hungry egrets..

Jen is away on a trip to the Amazon, so leaves behind her robotic assistant Sarah to look after things. But when Sarah accidentally deletes the file containing the call of the chinstrap penguin, Andy has to get to Antarctica to re-record again - with the leading expert on the penguins arriving any minute! Andy manages to find a chinstrap penguin, but there are many obstacles in their way before the penguin can lead Andy to the rest of its family - a chunk of ice, a leopard seal and a flock of skua birds...

Andy is excited because Mr Hammond has just released some pygmy geckos into the Amazon dome. But he is also worried - they're so small that they could easily get washed away in the dome's flood cycle. On Jen's advice, Andy heads down to the Brazilian rainforest to find one in the wild and see how it deals with water - but first he has to navigate a caiman, river dolphins and a capybara...

Jen has set up a live video feed to the island of Barbados to see the hatching of some baby Hawksbill turtles. Andy and Mr Hammond settle down to watch them as they emerge from a clutch of eggs buried deep in the sand. But they soon notice a problem - the baby turtles are all headed the wrong way, away from the guiding light of the moon and away from the ocean! It's up to Andy to figure out the problem and save the day - but can he do that without Mr Hammond seeing him on the feed?