Larceny Lu and her gang ran a stolen auto parts ring which was uncovered by Junior. The gang escaped when Dick Tracy raided their hideout, but Junior and Tracy captured them during the escape in Crossville. Larceny soon slipped out of jail, teaming up with her accomplice Mortimer and Steve the Tramp. Lu captured old arch-enemy Scotty Bumpstead and gave him to Doc Hump for experimentation. Doc was arrested and Lu again captured Scotty, this time paralyzing him. Scotty’s mother Edith hunted Steve and Lu down, almost killing them. Dick Tracy’s arrival meant the capture of Steve the Tramp but Lu escaped to recover and remembering Steve’s story about Junior’s mother Mary Steele, Lu decides to con Mary into giving her half the money willed to her by Hank Steele. Dick Tracy catches a wiff of the plot and arrests her and Mortimer at an amusement park.