Luna is an imaginative kid with a love of science and nature who learns how stuff works with her little brother and pet ferret. At the end of each episode they act out what they learned to their parents.
Where to Watch Season 4
26 Episodes
Northern Lights
E1
Northern LightsLuna, Jupiter and Clyde are playing soccer with some local Inuit children when they witness something truly spectacular - the aurora borealis.
Dolphin Talk
E2
Dolphin TalkLuna, Jupiter and Clyde are at the beach when they spot some dolphins making all sorts of noises as they play. But what could they be saying?
Pyramids of the Past
E3
Pyramids of the PastLuna's family are doing research in Teotihuacan in Mexico, when they begin to wonder, how exactly was this city built? They just have to know!
Water Festival
E4
Water FestivalLuna, Jupiter and Clyde visit an elephant sanctuary during the Thai New Year. They begin to wonder, what do elephants use their trunks for?
Ice Cold
E5
Ice ColdLuna, Jupiter and Clyde are ice fishing with a friend. When they find an igloo, they are surprised to discover that it's nice and warm inside. How can that be?
Aloha, Luna
E6
Aloha, LunaLuna and her family are in Hawaii. Everyone's excited to learn how to surf, which gets Luna wondering... how do waves form?
Kaboom!
E7
Kaboom!When the trio go to the top of Mount Vesuvius, they are surprised to see steam rising up from the volcano's crater. It gets them wondering, why do volcanoes erupt?
Lost in the Desert
E8
Lost in the DesertLuna's family are travelling in the desert when they notice how often sandstorms change their surroundings. How do people find their way in the desert?
Hot or Cold?
E9
Hot or Cold?Luna, Jupiter and Clyde are in the desert with a friend. When night falls, they are surprised by how quickly the temperature drops and wonder why.
Out of Breath!
E10
Out of Breath!Luna's family are at the top of a mountain when they realise that it feels a bit harder to breathe. Is there something different about mountain air?
It's All Rosy
E11
It's All RosyWhen Luna's family discover pink lakes on a Caribbean island full of pink flamingos, it gets them wondering... why are flamingos pink?
Blue Giants
E12
Blue GiantsLuna, Jupiter and Clyde are excited to see a blue whale for the first time. They are amazed by its size and begin to wonder, how did the whale get to be so big?
Aussie Animal
E13
Aussie AnimalLuna's family are enjoying their time in Australia when they see an animal they don't recognise. They soon discover it's called a platypus - but what is it?
The Coral Choral
E14
The Coral ChoralLuna, Jupiter and Clyde are on a canoe ride around Papua New Guinea. Underwater, beautiful corals can be seen - but what exactly are they?
Sticking Your Neck Out
E15
Sticking Your Neck OutLuna's family are in Africa when they see a giraffe reaching for leaves at the top of an acacia tree. How did the giraffe's neck get to be so very long?
Voyager's Voyage
E16
Voyager's VoyageWhile visiting an observatory in the Atacama Desert, Luna, Jupiter and Clyde hear about Voyager 1 for the first time. Where is it and what is its mission?
White As Snow
E17
White As SnowLuna's family are visiting the Arctic. Jupiter spots a polar bear, but it quickly disappears into the snow. This gets Luna wondering, why are polar bears white?
Green Island
E18
Green IslandWhen they see a frog hop right onto a lily pad, Luna, Jupiter and Clyde notice how very strong the leaf is - but how can it hold a frog?
A Pain in the Tooth
E19
A Pain in the ToothWhen Jupiter loses his toothbrush in India, Luna's family learn that some cultures use twigs as toothbrushes! But why do we have to brush our teeth?
Say Cheese
E20
Say CheeseGoing through some of Dad's photos for work, the trio begin to wonder, how exactly do cameras work? It's time for a scientific investigation!
The Tree of Life
E21
The Tree of LifeLuna's family are in western Samoa when they discover how many amazing things can be done with coconut trees. But how does water get into a coconut?
Rays of Sunshine
E22
Rays of SunshineAfter seeing different plant species in the Amazon, Luna, Jupiter and Clyde begin to wonder - what do plants eat? They decide to investigate.
Solid as a Rock
E23
Solid as a RockLuna's family are exploring ancient ruins when they notice two stone arches that have somehow stayed in one piece over thousands of years. Why don't they fall?
Once a Year
E24
Once a YearIt's Jupiter's birthday! But the trio discover that their indigenous friends count time a bit differently. Which gets them wondering - what is a year exactly?
Hanging Tight
E25
Hanging Tight
Water-Luna-Melon
E26
Water-Luna-MelonLuna, Jupiter and Clyde are visiting a watermelon plantation in Africa - but the watermelons are on the ground and there are no trees in sight!
Take Plex everywhere
Watch free anytime, anywhere, on almost any device.