Doraemon: Nobita in the Wan-Nyan Spacetime Odyssey is a Japanese anime feature film, based on the 24th and final volume of the same name of the Doraemon Long Stories series. Directed by Tsutomu Shibayama, the film premiered in Japan on March 7, 2004. It is the 25th Doraemon feature film and the last film of the original Doraemon film series.

Plot

An elderly dog goes to a time machine, which he plans to use to drive to the future so he can meet with "someone" who gives him a kendama. However, the machine encounters "temporal turbulence" and goes haywire and the dog is regressed back to his infant state, eventually found by a researcher cat.