Chikyuu Bouei Kigyou Dai-Guard
English title: Dai-Guard: Terrestrial Defense Corp.
Japanese title: 地球防衛企業ダイ・ガード
Type: TV
Episodes: 26
Premiered: fall 1999
Source: Original
Genres: Adventure, Comedy, Sci-Fi
Studios: Xebec
Producers: TV Tokyo, Sotsu, Victor Entertainment, TV Tokyo Music
Duration: 23 min per ep
Rating: PG-13 - Teens 13 or older

Thirteen years after their sudden disappearance, an alien race known as the Heterodyne resurface without warning. To combat the Heterodyne, three office workers from the 21st Century Security Corporation operate Dai-Guard - a giant robot no longer regarded as an oversized paperweight. Unfortunately, Dai-Guard is somewhat obsolete and in disrepair. It's a tough job, but salarymen can also save the world.

(Source: ANN)