Kikoriki: PIN-Code

The crew have been infected with a mysterious virus that turns them white. Dokko and his team research how viruses work and find a cure.

Wally is sick. Dokko and Carlin want to create tiny nano robots to help him fight his illness.

Barry has grown a giant pumpkin, but he's worried that the caterpillars will eat it before it's ripe. Krash and his friends form one team to ward off the caterpillars with force, and Dokko and the others form another team to use careful planning to keep the caterpillars away. Which method will work? In this episode, kids learn about molecular self-assembly.

The crew take a winter vacation. But the resort is abandoned and has no power! To keep warm, they search for a new source of energy.