Api is the only bee to have survived the massacre of her colony by foreign bees. Pursued by these murderous insects, she finds refuge with Ariane the black spider and the Tse fly. The trio soon discover that criminals have also been attacking red and black ants. The bugs immediately take it for granted that the ants and Api's family have been wiped out by the same killers, since red and black ants have formed enemy clans since the dawn of time. What if they were wrong? What if one of the clans had taken advantage of the arrival of foreign bees to orchestrate a cruel scheme that would allow them once and for all to eliminate their enemy? Will Ariane and her friends succeed in preventing further carnage?