Dad needs some training to pass his astronaut fitness test. Cosima and Big Lizard put him through his paces! When Rex gets into trouble, Dad's hard work finally pays off.

When the buggy gets a flat tyre, Dad, Cosima and Big Lizard are stranded. Big Lizard's playful nature helps reveal a creative solution to their problem.

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