2014年,突然现身的外星人「佩多拉」向地球人提出「交易」,以石灰岩作为交换,地球人获得了比战机、战车、枪更便宜好用,任谁都能轻易驾驶的意识控制型泛用机器人「EXOFRAME」,并迅速扩散于全球,既能作为交通工具、工业机械,亦可成为战争机器…。2015年,首场以EXOFRAME作为武器的战事爆发,看似充满好处且和平的交易背后,隐藏的真相究竟为何…?。When the universe's highest-flying dogs warp into outer space, Skyfetcher and Spaceslobber get a call from canine headquarters! It seems an unknown force is attacking unsuspecting planets, and it's up to them to root out the source of the trouble!。