The Ultimate Duo! Clemont and Cilan!!
It has been some time since the Team Flare incident in Lumiose City, and so a special fishing competition is to begin. Entering, all the way from the Unova region, is Ash's old travelling companion, Cilan. When at the competition, he meets Clemont and Bonnie and informs them he wants to see Prism Tower, so they guide him there. However, with his passion for the subway, they decide to go through the Lumiose subway system but soon they get separated and a driverless train drives off with just Bonnie on board. Will Cilan and Clemont be able to find her?