Nobita, believing he and Doraemon had done a good deed by saving stray cats and dogs and sending them back in time by 300 million years, discover that the usage of Doraemon's Ray of Evolution had created a cat-and-dog-person society equal to Nobita's time. When an asteroid attack is set to hit the city, Nobita and his friends must save Doraemon and ease tensions between the two sides.

The interplanetary spacecraft Galileo II carries Atom and his friends to Titan, a satellite of Saturn. However, what awaits them when they arrive there is an attack from an unknown entity. What appears is a mechanical life form called "Igza" that wants to destroy humans. The battle between Atom and Igza unfolds in the far reaches of space.

The Noharas get caught between two rival clans when Himawari swallows a pretty bead that turns out to be a mysterious ball with hidden powers.

Takeshi is a young man who receives the Polymar helmet to fight the vicious Pluto army. Given incredible abilities, he now fights for justice as Hurricane Polymar. This is a darker reboot of the original superhero anime of the same name.