Nobita and his dad buy a big rhinoceros beetle, which he promises to his dad to take good care of it. Later, Doraemon's group finds a strange island where a tribe co-exists with prehistoric creatures long believed to extinct yet preserved by a mythical beetle spirit named Golden Hercules. However, the group has to deal with a group of criminals from the future who intend to capture Golden Hercules for a profit.

In the near future, technology has made a few leaps and bounds, and videophones and constant wireless internet access are available to everyone. However, it would seen that the government has been careless and a skilled hacker was able to break into the national information archive. Using the data held there he creates the Platonic Chain website for people to discover information about themselves and their friends. Words start to spread quickly that there is a site that enables you to look up anything. Coincidentally, three young girls, Hitomi, Rika, and Kanae, are able to access the site.

Ryuunosuke Natsume is the son of genius inventor Kyusaku Natsume and overbearing Akiko Natsume, CEO of Mishima Heavy Industries. Using funds from his wife's company and the brain from his son's beloved cat, Kyusaku creates a revolutionary android called Atsuko "Nuku Nuku" Natsume. To Kyusaku's disgust, Akiko wants to use her husband's technology to create weaponized robots for her company's customers, resulting in Ryuunosuke getting caught within the explosive fights between his parents The android Nuku Nuku tries to live as a normal high school student, adopting the role of Ryuunosuke's elder sister, but usually ends up acting as her family's protector. Nuku Nuku will do anything to protect the ones she loves.

A four part OVA series including Yusuke's weird dreams.