Deep in the heart of a mysterious forest, a Pokemon named Shaymin stumbles into the midst of a battle between two powerful Pokemon, Dialga and Giratina. Ash and friends meet up with the feisty and sharp-witted Pokemon and discover that its journey and their own share similar themes -love of nature and all living things, and exploring the fragile line between humans and Pokemon. Add to the mix a helpful researcher, a dangerous villain, and a plan to rule the world, and you have all the makings of a Pokemon epic! And to make it even more spectacular, get ready for the appearance of Regigigas, a super-powerful Pokemon with a frosty demeanor and legendary status! How will Ash and his friends get out of this predicament.