The second installment in the Lone Wolf and Cub saga finds Ogami hired to kill a defecting worker about to reveal the secrets of a prosperous clans dyeing process to Ogamis nemesis Lord Retsudo Yagyu. Little does Ogami know that Lord Yagyu has sent a gang of female ninjas to kill him, and that he will have to fight a vicious trio of brothers sent to escort the informer. The bond between father and son is intensified as Daigoro assists Ogami in his quest, and nurses him when he is critically injured. Boasting more action than the initial installment, Baby Cart at River Styx is also beautifully photographed, with style to spare and great period atmosphere; this episode is considered by some to be one of the best of the series. ~ Jason Buchanan, All Movie Guide