It is the 25th century. The dark lord has 'infected' history with time-devices that could damage history beyond repair. Flint and his father lived in the prehistorics when they got turned into fossiles. They are discovered and Flint ges turned back to his original state. With the help of his father, a boy Tony and a girl Sara he has to travel trough time to bring the time-devices back to the land of time so history will be saved.

A story of future Earth - A warning for mankind: In the future, our planet will be transformed into a strange new world where human life struggles on an Earth without rain or oceans - only vast, parched deserts. Two youths fight for survival on our hostile planet and find hope. The sea, the sky and the land had been completely polluted by mankind when mysterious objects fall from the heavens. These titanic vessels smash into the planet and suck up the air, water, and most living creatures into their womb, stealing away the very essence of Earth`s nature. The few remaining inhabitants struggle for survival against a hostile environment and an oppressive ruling race known as the Rodo. One young, hot-blooded human named Ran, fights against the Rodo and a world in which rain is only a legend. He strives to join an Anti-Rodo group known as the Hazzard, not only to defeat the Rodo, but also to hunt down the man who killed his mother.

Even though studying at a prestigious art school like Yamabuki is hard work, the girls who live at the Hidamari Apartments always manage to squeeze in time for a little fun and exploration. And when they actually get a day off? Watch out world! Yuno, Sae, Hiro, Miyako and new students Nori and Nazuna return to create another masterpiece of life as art, with all new adventures that include swimming, pajama parties, trips to the art museum and even an all-you-can-eat diner courtesy of the landlady! Of course, there’s always a little housework that has to be squeezed in, but with a pinch of resourcefulness and a dash of creativity, even the most onerous of chores can be turned into something magical. (Source: Sentai Filmworks)

A special included on the 7th DVD release, commonly known as "Episode 14". It features nudity and adult situations which were not present in the original series.