Samurai Jack season 5
Strictly speaking, Samurai Jack is not Japanese anime, it falls in the Western anime genre.
Western anime is not made in Japan, but has a close resemblance to traditional anime.
Other examples of Western anime include Avatar the Last Airbender and The Legend of Korra.
Samurai Jack completes the saga of a man out of his era, seeking to destroy the ultimate evil.
Season 5 is self contained, you do not have to watch the first four seasons. The first four seasons followed an adventure of the week format. The 10 episodes of season 5 are a continuous story that can be enjoyed on it's own merit.
Samurai Jack season 5 is an excellent story of loss and redemption. The art has similarities of the art of Kill la Kill. The introduction of a new character, Ashi, is brilliant, as her story compliments and closely intertwines with Samurai Jack's.
Samurai Jack season 5 is a fine watch. I highly recommend it!