Rubies Are Forever is the twenty-third episode of "The Backyardigans 2.0" written by Hornean. This is written as a sequel to The Backyardigans episode, International Super Spy
Agent Secret is back, and he leads a team of spies with him including Agent Pink (formerly known as the Lady in Pink). They received a distress call from Dr. Jordan who told them that her brother Professor Victor was kidnapped by the evil Dr. Cat, who wants Professor Victor's rubies to make her plans for world domination. Dr. Cat even tries using tickle torture on the professor in order to get information on the location of the rubies. It's up to the super spies to retrieve the rubies, rescue the professor, and stop Dr. Cat once and for all.