After Jake, Trixie, Spud, and Grandpa battle a magical creature, they discover their contact with the beast has left them drained of their youth. Jake is thrilled because he's now 21 years old and living it up, but Trixie and Spud end up in a retirement home. Jake realizes he'll grow up soon enough and must defeat the beast to restore their youth.
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Ready to Watch American Dragon Jake Long, Season 2, Episode 21?