Jackie Chan Adventures (2000)

Season 5: Episode 11

A dark Chi-Wizard from the future called Iso travels to the past to steal one half of an ancient relic from Section 13. Unbeknownst to Iso, Jade follows him through a time portal on his return trip to the future and runs into her older self. Young Jade is shocked and disappointed to learn that adult Jade has so easily accepted the punishment of being demoted from field agent to desk duty at Section 13.