Son of the Guardsman

Looking for all the world like Robin Hood, Robert Shaw starred in this typically threadbare Sam Katzman serial as David Trent, a nobleman who forms an outlaw group to combat his evil uncle Sir Edgar Bullard (Charles King). The outlaws of Sherwood Forest (yes, Sherwood Forest!) are championing young Roger Mowbray, really Prince Richard (Robert "Buzz" Henry), whose right to the throne is being usurped by an evil regent (John Merton).