The latest episode of Pocket Monsters Diamond & Pearl 139 - Rescue Professor Okido! Nyorotono VS Gureggru!! (オーキド博士を救出せよ! ニョロトノVSグレッグル!!), aired on Thursday in Japan.

Hikari and friends continue their stay in Futaba town at Hikari's house. After finding out Professor Okido would be coming to visit Futaba town, Satoshi is excited to see him again. Unfortunately Professor Okido gets stuck on the side of the road but an impostor shows up instead!

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