Dr. Azuma creates robots to benefit mankind, but they unexpectedly rebel and begin to destroy everything in their paths. To deal with the catastrophe, Dr. Azuma's son volunteers to become a human robot, even though he knows he will never be able to return to human form again. He confronts this grave situation to ensure a bright future for all humans.

Lopple and Chammy, two runaway aliens, recruit Doraemon and Nobita to help save their planet from destruction.

A powerful entity known as Death Mask hurls Kujukuri City, Japan, and Dallas, Texas 10,000 years into the future, reshaping them into a ruthless battleground where only the strongest survive. Determined to shatter this tyrant's hold on time itself, Gai Tanbara ventures into the dystopian future. Along the way, he meets Emiya, a fierce warrior fighting to reclaim her city from the darkness. Together, they confront the horrors of a shattered world and the sinister forces threatening the fate of humanity!