Samurai Jack

Samurai Jack is an American animated science fiction series created by Genndy Tartakovsky for the Cartoon Network.
Plot summary.
An unnamed Japanese prince has been training to free his father from the demon named Aku. After a duel with Aku, he gets sent into the far future, where Aku rules a city.
Setting.
The show is set in a 1984-esque future.