While playing hide and seek with his friends, Alex and his friends are led astray by fog and mist. But when they manage to figure their way out to the city, they recieve a great shock to see the city completely isolated! A witch from Europa(moon of Jupiter) had mutated the organisms and now is marching ahead to decimate the whole of Earth. Will Alex and his friends succeed in protecting the Earth or will doom prevail? Find out by joining them on an epic adventure!