New episode title(s) has/have been added to the database. Title: ハリマロンVSメガメガニャース!! / Harimaron VS Mega Mega Nyarth!! / Harimaron VS Mega Mega Nyarth!!. Please comment below!
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The Rocket Gang, going after the secrets of Mega Evolution, abduct Professor Platane! And then Serena and Eureka are also...!? Satoshi is in deep trouble when faced with the terrifying, evolved Mega Mega Nyarth!!

Summary:
Satoshi and friends decide to stop by the Platane Laboratories on their way to Shoyo City. Meanwhile, the Rocket Gang decide to capture Professor Platane, as they are interested in his data on Mega Evolution! Eureka and Serena attempt to help the professor, but end up caught themselves as well! As they follow the trail of macarons Serena cleverly dropped behind them as a mark, Satoshi and friends close in on the Rocket Gang's location, joined by a gluttonous Harimaron...

Voice Cast:
Rica Matsumoto: Satoshi
Ikue Ohtani: Pikachu
Mayuki Makiguchi: Serena
Yuki Kaji: Citron
Mariya Ise: Eureka
Megumi Sato: Dedenne
Megumi Hayashibara: Musashi
Shinichiro Miki: Kojiro
Inuko Inuyama: Nyarth
Yuji Ueda: Sonansu
Yuka Terasaki: Yayakoma
Hitomi Nabatame: Harimaron
Hiroshi Tsuchida: Platane
Tomo Adachi: Sophie
Kensuke Sato: Limone
Unsho Ishizuka: Narration

So.. In this episode Serena decides that Satoshi & co. will stay in Miare a little longer and visit dat Platan.
It is somehow obvious who will get which Pokemon in this episode. Just one shot at a certain someone spills all the secrets of this episode.. Well, not all of them.
It does not cover the contrast between Team Rocket's professionality and th the same time complete idiocy in this episode. On one hand they have a plan, they kidnap a professor using a van and they have hacking skills beyond Neo (seriously, implemending "data on Mega Evolutions" into your own mecha just by "downloading" the data? Do all scientists in the Pokemon world use the same format for all research data and for electronics firmware?). But they also completely fail in several things. When they are supposedto leave the laboratory as far as possible before someone notices that the professor has been kidnapped, they just slack off and wait so long that two children actually manage to get into their van. Also, they build a Nyaasu-controlled mecha vehicle. Fine.. But.. a vehicle which needs a wire to be connected to its primary power source? What the hell? That is not how you do serious criminal business.
And some extra logic: The professor just conveniently has ALL of his research data on an SD-card in his pocket. I guess he really loves to to backup his data if he his pocket always contains a copy of an up-to-date version of all his research.
But good things happened in this episode as well. Serena and Eureka parodying the Team Rocket, addition of a new Pokemon to Satoshi & co, and a revelation of... Well, maybe a way too sudden revelation.

My rating:
An episode with the purpose to introduce a new Pokemon to the team. However, it is somehow forced. Something like "hey, let's suddenly go there instead of there", unexpectedly meet Team Rocket who are conducting some plan of theirs there and base the reason why the Pokemon joins Satoshi & co. only on this experience. Team Rocket is not really a good choice for a plot engine.
Despite all that, this episode had some good moments as well.
I give it 7.