Monkey D. Luffy, inspired by his idol Red-Haired Shanks, sets sail to become the Pirate King. His "grand fleet" begins not with a bang, but with a bucket: he recruits Zoro (a three-sword-wielding bounty hunter), Nami (a thieving navigator), Usopp (a compulsive liar with a heart of gold), and Sanji (a chivalrous chef who fights with his feet). Together, they chase the ultimate treasure, the One Piece.

Before One Piece became a global juggernaut with over 1,000 episodes, it started in Season 1 as a scrappy, heartfelt, and deceptively simple adventure about a rubber boy in a straw hat.

Episode 37 – “Luffy Stands Up! End of a Broken Promise!” (The Arlong Park climax). Watch if you like: Classic shonen adventure, found family tropes, and crying over cartoon pirates.