In the grim aftermath of a global catastrophe, Dr. Johnny Sins, the sole surviving male, finds himself the object of desire for four ravenous female colleagues - Anna Bell Peaks, Nicole Aniston, Rachel Starr, and Romi Rain. Donning their skimpy scrubs, the doctors seduce Johnny, their hungry mouths and insatiable bodies craving his massive cock. They perform a series of erotic examinations, their fingers probing wet pussies and tight assholes, before taking turns riding Johnny's dick, their moans filling the abandoned hospital as they race against time to repopulate the Earth with his potent seed.