This show is an absolute masterpiece in my eyes. If you like stories with complexity and a deep story, this is something you'll enjoy.
This can be different for everyone, but I really like Ancient things, and HATE stories where the plot is super basic such as the main villain wanting to take over the planet. In other words, I LOVE stories with depth to them -- They are my personal cup of tea. And that's exactly what this does right.
I love the direction the story takes. It takes place during the caveman era, so the characters don't even speak, and yet the story STILL goes hard.
That's one hell of an achievement. It's interesting to see how Fang and Spear build up a bond, as both of them dealt with the same tragic event; Losing their kids. As well as the whole Samurai Jack art-style looks beautiful in this. Seeing them go on journeys through different trials and tribulations, depending on each other is some S tier character development.
If anyone likes series with depth, complexity, and not spammed with fiction, this is for you.