Seasons & Episodes
The Day We Landed
Whilst exploring deep space, a meteor strikes Cosima and Dad's ship! After crash-landing on the unexplored planet of Pro
The Trouble with Trilobites
When a pack of pesky, migrating trilobites overrun the ship, Big Lizard has to use a hidden talent to lure them away. Bu
How We Met Dunk
Searching for a vital part of the ship that was lost during their crash-landing, Cosima and Big Lizard find Dunk stuck o
The Day We Met Ammon
Dad drops an essential gizmo in a hard-to-reach place. Big Lizard takes them on an underwater adventure to meet Ammon, t
Dad's Discovery
Whilst searching for new discoveries, a rockfall traps Dad, Cosima and Big Lizard in a cave. Just when all is lost, Dad
The Missing Volleyball
Twig steals Cosima's volleyball. A chase leads Big Lizard and Cosima to her den... and also to a happy discovery!
How to Hoverboard
Cosima and Big Lizard's solar-powered hoverboards run out of battery at nightfall. Can glowbugs be the answer?
Hot and Cold
Volcanic smoke blocks the three Proximan suns, which causes Big Lizard to become worryingly cold. Cosima's on the case a
How to Work Together
Cosima, Big Lizard and Ammon are squabbling over Dad's precious explorer notebook when disaster strikes. Only by working
When We Lost D.O.R.I.S.'s Brain
When a giant beetle steals D.O.R.I.S.'s brain, thinking it's a nut, Cosima and Big Lizard give chase through the forest.
Happy Campers
Cosima and Big Lizard have a camping sleepover with a friendly little crab. In the morning, their new friend is missing,
All About Home
Cosima is so excited to tell Big Lizard about her life on earth that she doesn't realise he has something exciting to sa
When Dad Sleepwalked
Cosima and Big Lizard investigate the cause of Dad's mysterious sleepwalking in an adventure that takes them around Prox
How to Record Sound
Big Lizard accidentally deletes some of Dad's 'boring' Proximan audio recordings. Through a dramatic sound adventure, Co
The Triple Eclipse
A triple solar eclipse is about to happen! Cosima and Big Lizard race down the volcano and hitch a lift on a dragonfly s
Crystals!
Big Lizard has found an epic crystal, and Cosima is jealous. Their squabbling reaches its peak at the top of the volcano
The Cocoon
A dragonfly steals a bee cocoon that Cosima had vowed to keep safe. Cosima and Big Lizard give chase, leading to a surpr
Dad's Birthday
When Cosima wrongly accuses Big Lizard of eating Dad's birthday cake, he vanishes. Has he run away, or is he planning a
Best Friends Forever
Big Lizard is jealous of the vacuum cleaner and hides it from Dad and Cosima. Ammon decides it's her new best friend, wh
Magnetite
A strange find far away from the ship breaks D.O.R.I.S.’s satnav. Luckily, Big Lizard’s on hand to teach Cosima how
The Problem Plant
Big Lizard frustrates Dad by stealing a strange plant from the ship. A disaster is averted when Big Lizard persuades Dad
The Sea Meteorite!
When a meteorite splashes into the sea, Dad and Cosima cause problems by claiming it in the name of science, against the
Astronaut Health Check
Dad needs some training to pass his astronaut fitness test. Cosima and Big Lizard put him through his paces! When Rex ge
How to Fix a Tyre
When the buggy gets a flat tyre, Dad, Cosima and Big Lizard are stranded. Big Lizard’s playful nature helps reveal a c
Cosima in Charge
Dad has left Cosima in charge for the day. It seems like an excellent opportunity to have a massive party! What could po
Happy Proximas!
When it unexpectedly snows, Cosima decides it must be Christmas! Rex disrupts her festive preparations, but it doesn't s
The Day Ammon Overcame Her Fear
Ammon gets spooked by a tiny insect, but overcomes her fear to rescue Cosima and Big Lizard from the rapids.
The Night of the Slug
Big Lizard and Cosima undertake an exciting night-time mission rehoming a friendly slug that's taken residence in Cosima
The Shiny Fruit
Cosima and Big Lizard find some fascinatingly slippery fruit, but bringing it safely back to the ship is more challengin
Dad's Drone
Big Lizard wants to have a go with Dad's new drone, but first he has to prove that he can go a whole day without breakin
A Medical Emergency
Whilst playing doctors, Cosima discovers an animal with no heartbeat! Can Cosima and Big Lizard save the poor creature w
All Out of Marmalade
When Dad runs out of marmalade, Big Lizard shows Cosima a plant that's growing Proximan oranges. The leaves turn out to
After the Storm
After a storm passes overhead, many creatures turn up in surprising places and need Cosima and Big Lizard's help. But tr
The River Picnic
Cosima and Big Lizard go paddleboarding, but Dunk and the river creatures are behaving strangely. Could it be something
The Overfriendly Neighbours
When Big Lizard and Cosima get covered in nectar, they become unwilling house guests to some overfriendly beetles. Will
The Lesson
Whilst Dad is stuck in the desert, D.O.R.I.S. tries to give Cosima and Big Lizard a lesson on friction. As things begin
Cosmic Groove
Dad's favourite record won't play anymore, so Cosima and Big Lizard secretly plan to learn the song and surprise him. Ho
All About Coral
Big Lizard and Cosima create a fantastic water ride when they dislodge an underwater rock blocking a volcanic vent. It's
The Vegetable Robbery!
When all the vegetables from their garden are stolen, detectives Cosima and Big Lizard investigate all over the neighbou
Big Lizard's Big Itch
Big Lizard isn't happy in his skin! Cosima tries everything to stop him scratching until she realises that's exactly wha
When Dad Got the Hiccups
Dad gets a severe case of Proximan hiccups. Big Lizard and Cosima do their best to help, but their attempt to scare Dad
Personal Space
When Cosima finally finds a quiet place to read her book, she realises peace and quiet aren't all they're made out to be
A Place to Sleep
Whilst Dad searches for a faulty wire, Cosima and Big Lizard play tag in the ship and accidentally break Big Lizard's ba
The Hoverboard Race
During a hoverboard race, Dad's new super-powered hoverboard malfunctions, so Cosima and Big Lizard throw the race to re
Prank Day!
Dad and Cosima both think they're the best at pranking. Their prank war quickly spirals out of control, until Big Lizard
The Camera
Cosima takes over Dad's mission to film a unique underwater plant. But his special camera proves harder to operate than
The Day We Lost Rex
Rex is missing, but Dad, Cosima and Big Lizard need him to save them from a giant slug!
How to Speak Lizard
When Dad's Lizard Translator malfunctions, Cosima is carried away by a giant beetle! Cosima and Big Lizard realise they
A Big Day Out for D.O.R.I.S.
Dad gets trapped in the shower when D.O.R.I.S. decides to visit the sea. Can Big Lizard and Cosima stop her before she d
The Earth Probe
Finding an earth probe makes Dad homesick. When Big Lizard accidentally destroys it, Cosima knows what to do. She recrea
One Whole Year
It's been one year since Cosima crash landed on Proxima, but no-one else has remembered this anniversary! Can a perfect
The Day We Left
When D.O.R.I.S. reveals a large meteor is about to land on the spaceship, it's finally time to leave. But should Big Liz
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