Lupin III chronicles the adventures of Arsene Lupin III, the world's greatest thief, and his partners in crime: master marksman Daisuke Jigen, beautiful and scheming Fujiko Mine and stoic samurai Goemon Ishikawa XIII. Lupin and his gang travel around the globe in search of the world's greatest treasures and riches and always keeping one step ahead of the tireless Inspector Zenigata, who has vowed to bring Lupin to justice.
Lupin III: Part III is without question the least talked about out of all the Lupin III series. If I had to guess why that is, I assume it would be because of it's choice of style for one. It has more of a cartoony feel and makes some questionable changes to the looks of the characters. These changes vary throughout the course of the 50 episode anime. It can take some time to get use to if you're familiar with the previous series which in itself was pretty different from the original series. Part III to me resembles the art in the manga.
Monkey Punch (creator) was influenced by a few artists who worked on Mad magazine which is fairly obvious if you have read the manga. I could go into more detail about that but I'm going give you some basic knowledge and also tell you why the show is a blast.
I'm not going to sit here and tell you about the characters because this is the third series and it's only common sense to assume that the person reading this has already checked out part I and II. Just like the previous series, there is no long term narrative. Each episode is it's own story. There is nothing to really invest in except for the fun adventures the characters go on for 24 minutes. It's quite similar to part II in terms of the kinds of stories they tell. Silly, weird, humorous, and usually lighthearted just to name a few. It's always enjoyable to see what ridiculous item Lupin plans to steal that episode. The episodes themselves are much more exaggerated and abstract due to the cartoony style they're going for. Yuji Ohno returns to compose the music. Instead of it being jazzy, It feels more funky to me which I guess is to go along with the "80's" look. It still sounds incredible nevertheless if that's the kind of music you enjoy.
There's not a whole lot to say about this series that a person who's already watched Lupin already knows. If you enjoy adventure comedies or shows that are character driven, then watch this. It has the greatest group of characters in all of anime. It's the kind of show you can relax and turn your brain off for an hour or two. It's pretty fast paced and at times witty. I'd say it's pretty refreshing to watch after viewing some of the red jacket films. Give it a try.