A horse goddess gives birth to three powerful brothers who set out into the Underworld to save three princesses from three evil dragons and reclaim their ancestors' lost kingdom.
The story happens in 1989 in the suburbs of Budapest, where the neighbor maintains an underground worker's guard training base, while the youngsters fall victim to a mistakenly posted letter.
In the year 80 AMM (After Mickey Mouse) on planet X the crime-syndicated Cats try to erase the Mouse-population once and for all. A scientist of the mice, prof. Fushimishi seems to have found the weapon against the threat - so Intermouse calls its best (albeit retired) agent, Nick Grabowsky, to get the plans. As a distraction for the Cats, they also send a second agent - Seargent Lazy Dick - for the mission.
