It begins as a carefree night out on the town 55 years from now...
...and then this never-reprinted tale from DC's Showcase V1 #92 (1970) takes a decidedly-downbeat turn.
Payback's a bitch, even in the future, as you'll see...
Sekowsky had quite a bit of latitude at DC as a writer/artist/editor during this period, revamping Wonder Woman, Metal Men and Supergirl (in Adventure Comics) while also presenting a couple of potential series in the final six issues of Showcase, Jason's Quest and Manhunter 2070.