Episode 577

"Z's Ambition Arc - A Desperate Big Escape Strategy!" is the 577th episode of the One Piece anime.

Short Summary
Luffy and Zoro fight off against Shuzo and Momonga. The straw hats, lily and her father manage to escape by the coup de burst and anchor connected Thousand Sunny. Shuzo defeats Momonga and the marines. He goes after the straw hats and prepares to fire his own men as torpedoes at the island the straw hats are in.

Anime Notes

 * Shuzo vs. Ain
 * Former Admiral Z appears for the first time in the anime
 * Momonga gets defeated by Shuzo
 * The straw hats and lily successfully rescue Panz Fry