Richie arrives at the Oak Lab looking for advice on how to evolve his Eevee. However, the Professor is on Seafoam Island getting ready to film a live TV show. Tracey decides to call Oak instead, but his co-host Mary picks up instead. Mary informs his that the Professor has gone missing. Tracey and Richie then travel to Seafoam Island where along with Mary and Officer Jenny, they try to solve the crime. What they don’t realize is that Butch and Cassidy have kidnapped him so Professor Nanba can interrogate him about the mysterious life form PokéRus.