Ranma ½

S01E5023 min· aired 6/22/1990
Final Facedown! Happosai vs. The Invisble Man
TMDb8.0
Nexus es124435TMDb ep 1949021
Overview
After being gone for a while, having fled to avoid Happosai's wrath, Soun and Genma return, claiming to have studied ancient ninja techniques that will enable them to beat the master once and for all.