In the future, humanity has extended its reach into space; and to help future generations adapt to the new environment, special children are genetically engineered and trained. But when the alien Wulgaru army invades the solar system, mankind is forced to use these evolved youngsters as soldiers on the battlefront. Izuru, Toshikazu, Tamaki, Kei and Ataru are a group of such soldiers who, due to their consistently terrible grades and bumbling maneuvers, are referred to as the “Failure 5”. That is, until they’re called upon by the Global Defense Force to pilot special mecha to combat the threat. Now, can the gang grow as a team and protect the human race against such a fierce foe?