From the ABC Saturday Superstar Movie:
Hanna-Barbera reunited with Screen Gems to transition Gidget into a cartoon. Unfortunately, this 1-shot offering, Gidget Makes the Wrong Connection, hasn't been seen in over 40 years.
Newcomer Kathy Gori debuted in the title role, as Gidget and her friends find themselves having to capture some smugglers. The supporting cast includes Bob Hastings, Mike Road, and Don Messick.
Edit, 11/6/15: The video has been pulled by the YouTube user.
Bear in mind that the original Gidget, with Sally Field, lasted just 1 season on ABC (1965-6), but a subsequent revival in the 80's lasted slightly longer. Go figure. The cartoon apparently was another attempt at copying the successful Scooby-Doo formula, but the story begins without a beginning. Not good.