Lone Wolf and Cub: Baby Cart at the River Styx (子連れ狼 三途の川の乳母車 Kozure Okami: Sanzu no kawa no ubaguruma) is a 1972 Japanese film based on a Kazuo Koike manga series and directed by Kenji Misumi. It is the second film in the Lone Wolf and Cub series. Much of this film was re-dubbed along with 12 minutes of the first to make Shogun Assassin, a simplified version of the storyline which became a cult classic.