Whilst exploring deep space, a meteor strikes Cosima and Dad's ship! After crash-landing on the unexplored planet of ...

When a pack of pesky, migrating trilobites overrun the ship, Big Lizard has to use a hidden talent to lure them away....

Searching for a vital part of the ship that was lost during their crash-landing, Cosima and Big Lizard find Dunk stuc...

Dad drops an essential gizmo in a hard-to-reach place. Big Lizard takes them on an underwater adventure to meet Ammon...

Whilst searching for new discoveries, a rockfall traps Dad, Cosima and Big Lizard in a cave. Just when all is lost, D...

Twig steals Cosima's volleyball. A chase leads Big Lizard and Cosima to her den... and also to a happy discovery!

Cosima and Big Lizard's solar-powered hoverboards run out of battery at nightfall. Can glowbugs be the answer?

Volcanic smoke blocks the three Proximan suns, which causes Big Lizard to become worryingly cold. Cosima's on the cas...

Cosima, Big Lizard and Ammon are squabbling over Dad's precious explorer notebook when disaster strikes. Only by work...

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 fore...

Cosima and Big Lizard have a camping sleepover with a friendly little crab. In the morning, their new friend is missi...

Cosima is so excited to tell Big Lizard about her life on earth that she doesn't realise he has something exciting to...

Cosima and Big Lizard investigate the cause of Dad's mysterious sleepwalking in an adventure that takes them around P...

Big Lizard accidentally deletes some of Dad's 'boring' Proximan audio recordings. Through a dramatic sound adventure,...

A triple solar eclipse is about to happen! Cosima and Big Lizard race down the volcano and hitch a lift on a dragonfl...

Big Lizard has found an epic crystal, and Cosima is jealous. Their squabbling reaches its peak at the top of the volc...

A dragonfly steals a bee cocoon that Cosima had vowed to keep safe. Cosima and Big Lizard give chase, leading to a su...

When Cosima wrongly accuses Big Lizard of eating Dad's birthday cake, he vanishes. Has he run away, or is he planning...

Big Lizard is jealous of the vacuum cleaner and hides it from Dad and Cosima. Ammon decides it's her new best friend,...

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 t...

Big Lizard frustrates Dad by stealing a strange plant from the ship. A disaster is averted when Big Lizard persuades ...

When a meteorite splashes into the sea, Dad and Cosima cause problems by claiming it in the name of science, against ...

Dad needs some training to pass his astronaut fitness test. Cosima and Big Lizard put him through his paces! When Rex...

When the buggy gets a flat tyre, Dad, Cosima and Big Lizard are stranded. Big Lizard’s playful nature helps reveal a ...

Dad has left Cosima in charge for the day. It seems like an excellent opportunity to have a massive party! What could...

When it unexpectedly snows, Cosima decides it must be Christmas! Rex disrupts her festive preparations, but it doesn'...

Ammon gets spooked by a tiny insect, but overcomes her fear to rescue Cosima and Big Lizard from the rapids.

Big Lizard and Cosima undertake an exciting night-time mission rehoming a friendly slug that's taken residence in Cos...

Cosima and Big Lizard find some fascinatingly slippery fruit, but bringing it safely back to the ship is more challen...

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 brea...

Whilst playing doctors, Cosima discovers an animal with no heartbeat! Can Cosima and Big Lizard save the poor creatur...

When Dad runs out of marmalade, Big Lizard shows Cosima a plant that's growing Proximan oranges. The leaves turn out ...

After a storm passes overhead, many creatures turn up in surprising places and need Cosima and Big Lizard's help. But...

Cosima and Big Lizard go paddleboarding, but Dunk and the river creatures are behaving strangely. Could it be somethi...

When Big Lizard and Cosima get covered in nectar, they become unwilling house guests to some overfriendly beetles. Wi...

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 beg...

Dad's favourite record won't play anymore, so Cosima and Big Lizard secretly plan to learn the song and surprise him....

Big Lizard and Cosima create a fantastic water ride when they dislodge an underwater rock blocking a volcanic vent. I...

When all the vegetables from their garden are stolen, detectives Cosima and Big Lizard investigate all over the neigh...

Big Lizard isn't happy in his skin! Cosima tries everything to stop him scratching until she realises that's exactly ...

Dad gets a severe case of Proximan hiccups. Big Lizard and Cosima do their best to help, but their attempt to scare D...

When Cosima finally finds a quiet place to read her book, she realises peace and quiet aren't all they're made out to...

Whilst Dad searches for a faulty wire, Cosima and Big Lizard play tag in the ship and accidentally break Big Lizard's...

During a hoverboard race, Dad's new super-powered hoverboard malfunctions, so Cosima and Big Lizard throw the race to...

Dad and Cosima both think they're the best at pranking. Their prank war quickly spirals out of control, until Big Liz...

Cosima takes over Dad's mission to film a unique underwater plant. But his special camera proves harder to operate th...

Rex is missing, but Dad, Cosima and Big Lizard need him to save them from a giant slug!

When Dad's Lizard Translator malfunctions, Cosima is carried away by a giant beetle! Cosima and Big Lizard realise th...

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 sh...

Finding an earth probe makes Dad homesick. When Big Lizard accidentally destroys it, Cosima knows what to do. She rec...

It's been one year since Cosima crash landed on Proxima, but no-one else has remembered this anniversary! Can a perfe...

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 ...