Slip (Leo Gorcey), Sach (Huntz Hall), Bobby (Bobby Jordan), Gabe (Gabriel Dell), Whitey (Billy Benedicy) and Chuck (David Gorcey)---the gang's all here---accidentally enter the detective business with the disappearance of a beautiful girl, Eleanor Williams (Teala Loring), as their first case to solve.
They are retained by Selena (Betty Compson), who says she is the missing girl's sister but, at this stage in her career, Betty Compson characters were sometimes less than truthful. The disappearance is doubly puzzling because Eleanor has just learned that her long-lost husband, Tom Williams (Bob Faust), is returning from South America. Slip and Company trace Eleanor to the apartment of Dr. Rolfe Carter (Pierre Watkin), to whom she first went when Tom was reported missing three years earlier. Slip witnesses the doctor's murder, but does not know who fired the fatal shot.
Slip and his friends learn that Dr. Carter (no relation to the Little Liver Pills guy)was a pseudo-psychic (there are real ones?), who was into blackmailing his clients. He is linked with syndicate-chief Armand (Dan Seymour).
The latter, and his henchies, knowing that Slip has information regarding Carter's murder, set out to kill the boys.
Patti Brill, as Slip's girl friend, doesn't hurt this one any, either. Monogram was very good at rounding up lovely little de-icers to populate their films.
