The Incident

Donatello is working in his lab, when Mikey comes in an messes stuff up.
Now Donatello who was somehow turned into a kid has none of his current memories only those of his years as a child.
Donatello's family and friends must find a way to return him back to himself, and protect him from any enemy.
Or is Donatello stuck as he is? A kid?
I do not own teenage mutant ninja turtle!
......sadly