When does Samurai Jack return?

Samurai Jack is an American animated action-adventure television series. The titular character is an unnamed Japanese samurai prince who wields a mystic katana capable of cutting through virtually anything. He sets out to free his kingdom after it is taken over by an evil, shapeshifting demon lord known as Aku. Adopting the name "Jack" after being addressed as such by beings in this time period, he quests to travel back to his own time and defeat Aku before he can take over the world.
Samurai Jack tells the story of an unnamed young prince (voiced by Phil LaMarr) from a kingdom set in feudal Japan. The samurai prince arrives on Earth surrounded in dystopian retrofuturism ruled by Aku. The retro-futuristic world is inhabited by a variety of denizens such as robots, extraterrestrials, talking animals, monsters, magical beings, and deities.