Season 1, Episode 11. Originally aired February 16, 1966.
Written by Fred De Gorter. Directed by Tom Gries.
Riddler returns with a vengeance and puzzles on top of puzzles as a visiting King Boris disappears. The Dynamic Duo smash into a bone-rending bind as they give chase.
See all of my Batman '66 vlogs here: https://www.youtube.com/playlist?list=PLoXoHguaaZ7qf9G_Nd9U5kxaj-xa6vO96
LIKE the Batman '66 Fan Page on Facebook: https://www.facebook.com/batman66fanpage