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. Big Lizard uses unique skills to rescue poor D.O.R.I.S.'s superbrain.

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

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