A six issue mini-series that is a sequel to the Batman Season Two episodes "A Piece of the Action/Batman's Satisfaction" from March 1st and 2nd, 1967. The two-part episode featured The Green Hornet/Britt Reid (Van Williams) and Kato (Bruce Lee) visiting Gotham. They team up with Batman and Robin to face Colonel Gumm (Roger C. Carmel).
This sequel is written by Kevin Smith with Ralph Garman; penciled by Ty Templeton, with painted covers by Alex Ross.
The digital edition can be found here.
Collected in Batman '66 Meets the Green Hornet.