The Rainbooms and Turtles go to Paris, only to find themselves going through time to help a Master Thief clan be saved from being erased from history.

The 'In Time' part has thinking about the arcade game 'Turtles in Time'

Interesante

Ooh, remember Multiverse Hearts Secret Volume: MLP World: Rarity and the Thievius Ponius?

Secretly, Rarity and Sweetie Belle are cousins of Sly Cooper because of Sly's aunt, Sapphira Cooper marrying Rarity's uncle, Chivalry Bouffant, after Sapphira began hiding in Canterlot City in the Equestria Ninja Girls Timeline/Reality.

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The story almost reminds me of Fast Forward, jsut the traveling through time part, not anything else.