Big Lizard

While exploring deep space, a meteor strikes Cosima and Dad's ship. After crash-landing on the unexplored planet of Proxima, Cosima makes a new best friend called Big Lizard.

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

While searching for a vital part of the ship lost during their crash landing, Cosima and Big Lizard find Dunk stuck on a beach. They use science to save the day and make a new friend.

When Dad drops an essential gizmo in a hard-to-reach place, Big Lizard leads an underwater adventure to meet Ammon, the tentacled solution to their problem.

While searching for new discoveries, a rockfall traps Dad, Cosima and Big Lizard in a cave. Just when all is lost, Dad finally discovers a new species.

When Twig steals Cosima's volleyball, a chase leads Big Lizard and Cosima to her den, and a happy discovery.