Kung Fu Panda: Dark days

Kung Fu Panda: Dark days is a TV series/ movie based in the future of Kung Fu Panda.
=== After a fate had made the former trainer/ leader to disappear, Po and the Furious Five has to defeat an old team, but can teamwork with other villains bring a closure to past, present, and the future of China? ===

Plot: Movie version
The movie started with an older version of Po having a nightmare. The nightmare shows him in pain while a screeching sound came. Some shadows appeared to defeat the noise, before leaving some marks trapping the sounds away.

The next day, Po got up to greet his buds.