Teenage Mutant Ninja Turtles (2003): Season 4, Episode 13

4 - 13: Samurai Tourist

Usagi and Gen come to New York for a visit with the Turtles. Gen gets a little carried away by the bright lights of the big city and goes wandering off on his own. And if the modern world wasn't dangerous enough, an assassin from Usagi's world has followed Usagi and Gen. His target: Leonardo.