The 1970s was a pivotal decade for Batman, one in which he transitioned from TV's campy Caped Crusader into today's Dark Knight Detective! Now, legendary scribe Len Wein (DC UNIVERSE: LEGACIES) tells a never-before-revealed tale from this era in a brand-new story illustrated by TK TK! Plus: Following the 26-page lead story is a classic tale originally published in the '70s, also written by Len Wein!