After Ella Porter was taken down by rebel and the flock their former flock member a traitor named Elizabeth escaped. She then escaped to another lab her mother made for her called The underground. She then starts raising her experiments to hate her former flock. Until one day 6 avian children Owl, Falcon, Raven, Hawk, Robin and finch escaped. They now have to team up with rebel and stop Elizabeth

Can they find the flock and warn them of danger?