Humanity appeared on verge of death: natural cataclysms, mortal viruses, acts of terrorism, violence and cruelty. Seems, a rescue is not present. But a hotshot engineer-idealist decides on madness. He constructs a ship "The Star butterfly", to flit on other planet and give a new chance to humanity. The a few thousand carefully selected volunteers took chance to believe that all is possible to begin at first and to build just society. Will they be able to survive on a giant ship and get to the enigmatic planet? Ideals is perfectly, but wherever a man ran, he took with itself the essence.