Dick Tracy; Sparkle Plenty; B O Plenty; Gravel Gertie; Dr Keenan Plain; Mona Plain; Tess Tracy; Sam Catchem; Mrs Forchune
The Tracy and Plenty families celebrate Christmas. Dr Plain surreptitiously kills off members of the Forchune family, in order to inherit a South American nitrate plant. Sam tracks murder evidence down an icy river. Tracy (with gun) and Plain (with prosthetic flamethrower) battle; Plain is burned to ashes by spilled gasoline.