Watch Chikyuu Bouei Kazoku Special Online

Twelve years ago, an alien force known as the Heterodyne attacked earth. In a defensive response, the government contracted to have a robot built to help defeat this monstrous foe. The contract was awarded to the lowest bidder, the Heterodyne never reappeared and now the idle unused Dai-Guard has been assigned to the corporate marketing department as the central attraction to a theme park. And when a Heterodyne does reappear, it falls upon three marketing department employees to activate the Dai-guard robot and engage the enemy.The rash and impulsive Akaji and a reserved and refined Aoyama, team up with Ibuki, a long time coworker and friend to engage and defeat this alien enemy. With a profit/loss margin in mind, the company decides to create a new marketing department sub-unit, designed to use the Dai-Guard robot in the defense of Japan. The work relationship between Akaji, Ibuki and Aoyama allow them to be the best of friends, and a most troublesome combat team.Office workers saving the world!!

An alternative episode 11 (or episode 11.5) released on the DVD set of Chikyuu Bouei Kazoku. The world's first experience simulation game park "Amber Crystal" opened in Chiba Prefecture. Opening day only allows couples inside with a special ticket. Seiko and cameraman Hayakawa, Mamoru and Junko-sensei are there to meet up. While saying "because it is a game, it's okay to do anything", Mamoru guards as a knight figure to raise XP to steadily power up. Meanwhile, Seiko who became a mage, realized that this game park is the invasion of the space monster and goes on to approach the final boss of the game.

The Daichis are a family in danger of tearing itself apart. Dissatisfied and money obsessed mom Seiko has served wimpy and otaku dad Mamoru with divorce papers. Daughter Nozomi who has always been saddled with all the housework, feels pained that everyone is using her. The youngest albeit most foul mouthed, Dai is forced to watch all this as everything is going to pieces. However when the Galaxy Federation recruits the Daichis to combat alien threats to the wellbeing of the Earth, it will be a chance for the family to save the world and maybe themselves.