Amazon Lily
After his defeat at the hands of Kuma at the Sabaody Archipelago, Luffy is sent flying and crash lands on Amazon Lily, an island exclusive to women that executes males on sight. As he tries to find a way off the island and back to his crew, Luffy makes unexpected friends and foes, while also learning of his brother's imminent peril.
Episodes
408 Landing! The All-Female Island, Amazon Lily Jul 5, 2009 
409 Hurry Back to Your Friends! The Maiden Island Adventure Jul 12, 2009 
410 Everyone Falls in Love! Pirate Empress Hancock Jul 19, 2009 
411 The Secret Hidden on the Backs – Luffy and the Snake Princess Meet Aug 2, 2009 
412 Heartless Judgment! Margaret is Turned to Stone!! Aug 9, 2009 
413 A Difficult Fight for Luffy! The Snake Sisters' Haki Power!! Aug 16, 2009 
414 All-Out Special Power Battle!! Gum-Gum vs. Snake-Snake Aug 23, 2009 
415 Hancock's Confession – The Sisters' Abhorrent Past Aug 30, 2009 
416 Saving Ace! The Next Stop: the Great Prison! Sep 6, 2009 
417 Love is a Hurricane! Hancock Madly in Love! Sep 13, 2009 
418 The Friends' Whereabouts – The Science of Weather and the Mechanical Island Sep 20, 2009 
419 The Friends' Whereabouts! An Island of Giant Birds and a Pink Paradise! Sep 27, 2009 
420 The Friends' Whereabouts – Bridging the Islands and Vicious Vegetations! Oct 4, 2009 
421 The Friends' Whereabouts! A Princess Negativity and the King of Demons! Oct 11, 2009