While heading to Nimbasa City, Ash and his friends meet up with Professor Juniper, who has a surprise for them: A Plume Fossil that has been donated from Lenora in Nacrene City that could be ressurected as an Archen. With help from Doctor Fennel from Striaton City, they revive the fossil and an Archen is born, with help from Fennel's Musharna. Upon ressurection it attacks everyone and after being headbutted by Ash it's KO'd. Meanwhile Team Rocket overhears this and is asked by the bad Doctor Zager to capture Archen and get all the computer info. Will they succeed and get all the computer data they need? Will Archen be able to fly as it evolves into Archeops? Yes. And what are those seeds it dropped near the machine?