Episode 50

"Usopp vs Daddy The Father! Showdown at High Noon!" is the 50th episode of One Piece.

Summary
Usopp manages to anger the daughter of bounty hunter Daddy the Father, and finds his own life at stake. When Daddy discovers that Usopp is the son of Yasopp, the only man to beat him, he challenges him to a duel.

Trivia

 * Although the FUNimation title is announced as "Usopp vs. Daddy the Father! Showdown at High Noon!", the text is written as "Usopp vs. Daddy the Parent! Showdown at High!".