A mysterindus heart attack-inducing compound leads Tracy and Sam to Dr. Plain. In the ensuing case, Plain uses his flame-throwing prosthesis to singe Tracy. Tracy shoots him, and the wounded doctor runs into the street, where he is struck by a gasoline truck. The gasoline spills and is ignited by Plain's flaming hand. Plain is burned to death. Tracy and Sam take Mrs. Plain into custody as an accomplice to her husband's crimes.
From Dick Tracy newspaper strip (Chicago Tribune) 19xx-xx-xx to 19xx-xx-xx.