Netflix's live-action adaptation of One Piece covers the East Blue Saga, roughly corresponding to the first 44-45 episodes of the original anime series. The first season consists of 8 episodes, condensing about 45 anime episodes into this single season

. The live-action series ends around the Arlong Park arc, which is episode 44 in the anime. This arc is a significant climax in the story where the Straw Hat Pirates' goals and skills are solidified, setting the stage for their future adventures

. To summarize:

• The live-action One Piece season 1 covers about 45 anime episodes.
• It ends with the Arlong Park arc (anime episode 44).
• The story covered corresponds to the East Blue Saga, the very first major arc in the One Piece story

For viewers wanting to continue the story after watching the live-action series, starting the anime from episode 48 is recommended, as episodes 46 and 47 focus on other characters and the narrative picks up with the Straw Hats arriving in Loguetown at episode 48