‘Young Sherlock’ Review: Guy Ritchie Returns to the Great Detective With a Fun but Convoluted Series

Guy Ritchie is back on TV, and this time he’s tackling a character he’s already brought to the big screen. After making two widely successful “Sherlock Holmes” films, Ritchie is turning back the clock to produce and direct “Young Sherlock,” from showrunner Matthew Parkhill.

Out of the gate, this is a bit of a strange project, as it is neither a faithful adaptation of Andrew Lane’s “Young Sherlock Holmes” books, nor a proper prequel to Ritchie’s “Sherlock Holmes” movies. You could, in theory...