The Mystery Squadron (aka Mystery Squadron) is a 1933 American pre-Code 12-chapter Mascot film serial, directed by Colbert Clark and David Howard. The film was produced by Nat Levine, and stars Western star Bob Steele, Guinn "Big Boy" Williams, Lucile Browne, Purnell Pratt and Jack Mulhall. The Mystery Squadron made an impressive use of a great deal of aerial footage to enliven the action. ()