Rebecca is six years old, she gets sick very easily but is no less energetic. During a frog hunt in the rain, in her socks and without a coat, she catches Ernest, the oldest of the viruses, who quickly becomes her best friend!

Around the year 3000, Pierrot, Psi and the robot Metro, inhabitants of the planet Omega, are tasked with ensuing space security. When they come under attack, their ship crash-lands on an unknown planet...