Project T (Tmnt 2012)

This story follows 5 mutant girls who were "defective" experiments of kraang and shredder and who were dumped in an alley way to live on their own at just 2-4 years of age. But they weren't there for long, taken in by MAA: Mutant Alien Asylum where they spent the rest of their lives up to their teenage years. Being experimented on and given weird tests and such was not fun, and they thought they'd never escape... until..
They met the Tmnt.