When We Lost D.O.R.I.S.'s Brain—Series 1

10/52 A creature takes D.O.R.I.S.'s brain, so Cosima and Big Lizard chase it into the forest...

The Day We Landed—Series 1

1/52 Cosima and Dad crash-land on an unexplored planet, Proxima B, and meet Big Lizard!

12/52 Cosima wants to tell Big Lizard all about her life on earth, no matter what the cost.

14/52 Cosima and Big Lizard record some cosmic nature sounds for Dad.

15/52 Cosima and Big Lizard race against time to watch a cosmic triple eclipse!

16/52 Cosima is jealous of Big Lizard's beautiful crystal.

17/52 Cosima and Big Lizard chase a cocoon-stealing dragonfly, armed with a vacuum cleaner!

18/52 Cosima accuses Big Lizard of eating Dad's birthday cake.

19/52 Cosima needs to reassure Big Lizard that he is definitely her best friend forever.

20/52 When D.O.R.I.S.鈥檚 satnav breaks, Big Lizard teaches Cosima how she to find her way.