|Airdate||Thursday, September 18, 2008|
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|Next||Bark, Bark to Play Park|
- Fiesta Trio
- Guillermo (name revealed)
- Isabella (name revealed)
- Helena (debut)
Dora's twin siblings have a fever, so Dora decides to give them a jack-in-the-box, but Jack has forgotten his song when he is wound up, so Dora must help him remember it on the way home.
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- Russian Doll
- Piano Gate
- Dora's House
- The names of Dora's baby siblings - Guillermo and Isabella - are revealed in this episode.
- This is the 106th episode of the show.
- Isa & Benny don't appear in this episode.
- Dora and Boots sing the Travel Song without the Fiesta Trio.
- This is the 16th episode where Backpack is not used.
- This episode premiered exactly 6 years after Pinto, the Pony Express premiered.
- Map's dancing is recycled from Dora's Fairytale Adventure.