Rubies Are Forever

 is the twenty-third episode of "Backyardigans x Frontyardigans" written by Hornean. This is written as a sequel to The Backyardigans episode, International Super Spy

Summary
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 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.

Characters

 * Pablo (Agent Secret)
 * Uniqua (Agent Pink)
 * Tasha (Miss T.)
 * Thomas (Henchman Thomas)
 * Sophie (Dr. Cat)
 * Austin (Secret Contact Austin)
 * Andrew (CIA Agent Andrew)
 * Tyrone (Agent Tyrone)
 * Martin (D)
 * Henwen (Miss Moneynickel)
 * Denise (Analyst Denise)
 * Victor (Professor Victor)
 * Moe (Henchman Moe)

Quotes

 * Martin (D): Here's something I'm particularly proud of, Agent Secret. This is the D-copter. Light, agile, television-equipped for surveillance.
 * Pablo (Agent Secret): Oh, I can see how you might get a rise out of it.
 * Martin (D): Oh, grow up, Agent Secret.