50 Chapter 486 (p. 3) and Episode 378, Ace was send to and imprisoned in Impel Down.

What episode does Luffy find Ace in jail?

The Underwater Prison Impel Down!” is the 422nd episode of the One Piece anime.

What episode does Blackbeard catch ace?

Blackbeard’s Darkness Attacks Ace” is the 325th episode of the One Piece anime.

Ultimately, the Pirates succeeded in freeing Ace. But, he chose to sacrifice his life to save Luffy from Admiral Akainu. Ace’s death was one of the biggest shocks in One Piece, because this series isn’t really known for killing off people. When Oda did it, even his editors didn’t want to see this.