Watch Barbie: Spy Squad for Free: How to Stream the Movie Online at 123Movies. . Barbie and her best friends Teresa and Renee transform from hard-working gymnasts to undercover secret agents. When their amazing gymnastics skills catch the eye of a top-secret spy agency, the girls are soon following clues to a gem-stealing cat burglar, using high-tech gadgets, glam disguises and cute robo-pets to save the day.