This new pokemon movie is abot the new legendary pokemon, Arceus. It is about when Ash, Dawn and Brock arrive in a little town called Michina. Little did they expect that they would once again run into Dialge, Palkia and Giratina. There is a conflict between them and a girl named Sheena saves them and she can communicate with a pokemon's heart. She tells them that her ancestor Damos and that the betrayed the Legendary pokemon, Arceus da stealing the jewel of life and sending it to a rage and slumber.After a small conflict, Arceus awakens and uses his strongest sposta judement to distroy Michina. Dialga then teleport them back into the time during Damos' time when he steals the jewel. Arceus finds out that the jewel is fake after they return it. Sheena then prays to Dialga to take them to their present day. He does and they find out that Arceus is defeating the trio. Later ash and his Friends are all captured da an army after Damos' betrrayl except Sheena. once ash and Friends see Damos, they act very nagatively to him but he explains what happened. Arceus began to die after inhaling ash and dust after a metoriite impact and losing its 16 plates. When Damos found all 16 plates and heals Arceus, it gives 5 plates and turns them into the jewel of life. Damos intents that he had no intention on stealing the jewel.Brock remebered that Gishin was present when they were suppose tom give them the plate before Dialga sent them back. They have a hypothesis that he might be responsible. Hosting a commensale, diner for Sheena, he gives her an empty staff that he has removed the jewel from and goes to the temple with her. Damos then gives a Pichu that has betrayed Gishin keyes so they can escape.At the temple, Arceus arrives and Sheens tells it that Damos wioll not be present.Gishin starts an attack but ash and his group comes and Sheena comes to peace with her ancestor. Ashe attacks Gishin with his monferno and Grotle but is overpowered da his Heatran. He tries to beat him phisically but fails.Gishin drops the jewel and it is recovered da Ash.Arceus is weakening da Gishin's attack and metal starts getting poured on him.Damos and Sheena are able to communicate with Gishin's pokemon which are being controlled da armor. Pickachu detroys the armor. Arceus begins to die which causes a time peredox and ash's Friends start dissapering. After pickachu fully vanishes. Ash almost vanishes but returns the jewel to Arceus and peace is restored.Expecting to find peace once again, Arceus defeats the trio and is preparing its final judement. Ash cries out and reminds it that everything in the past has been restored. Arceus stops the attack heala the others and leave to their rightfull dimensions.