It's finals day and after a whole year's training the kids are pumped. But a sudden crisis throws the whole event into turmoil.
In the days before the final surf-off, nerves give rise to jealousies and tensions between some of the Solar Blue team.
When a population of crawfish is stricken by a mysterious illness, the Octonauts race to find a cure.
Brought up under apartheid in South Africa, Anton Enus only tasted real equality on arrival in Australia. Now a well-known media figure, he's turned his cancer battle into a health campaign. He speaks with Kathryn Robinson.