Synopsis
The alien species known as the Heterodyne vanished without a trace thirteen years ago, only to suddenly come back. To deal with this renewed danger, three regular employees of the 21st Century Security Corporation are given the task of operating Dai-Guard—a gigantic robot once labeled an outdated and awkward piece of machinery. Although the mecha is in terrible shape and thoroughly obsolete, these unremarkable defenders must step up and demonstrate that even everyday office workers are capable of saving the planet.
