What is Bruce got turned into a child? And the Robins had to take care of him? :D
Okay gonna plot out the whole story instead of writing little pieces.
Bruce ends up on the wrong side of a meta (by complete accident on Clark’s part). It turns him into a child and the Justice League have a collective panic attack. Because Bruce as a child, without memories - they’re screwed.
One word: Robins.
So they figure their safest bet would be to contact either Tim or Dick. Tim because he’s nearly always calm and logical and Dick because Dick knows them/wouldn’t try to kill them more worried with Bruce.
They decide on them both. Because then Dick can concentrate on calming the hysterical child (who it seems just watched his parents die a few weeks ago) and Tim can then help them figure out the why and how to get Bruce back to his proper age.
The League was wrong though. Tim and Dick freak out in their own ways…Bruce doesn’t remember them. This is child Bruce the one who just watched his parents be murdered. He’s not their Father.
But like they were trained they manage to settle and get the Mission done. Dick takes Bruce home to the Manor and Alfred while Tim goes to kidnap Jason, calling Cass and Steph on the way.
Oracle gets the Birds and Batwoman to cover Gotham for at the minimum a week while they sort this out.
Bruce is meanwhile terrified but Alfred explains everything (without the gore and things). So Bruce calms down and kind of accepts them.
Then it’s just a bunch of fluffy times where Dick cuddles Bruce, Bruce bonds with Damian over kittens, Jason watches movies other than the Mask of Zorro with Bruce and Tim reads. Alfred makes cookies and stuffs him full of food.
The girls fawn and play dress up and pinch his cheeks and kiss him.
There are some rough times but they deal with it as a family. The roughest is when they realize they can’t change Bruce back. He’s a child forever - which is not necessarily a bad thing except it kind of is for them - unless they find the Meta and the Meta has a way of changing him back.
Meanwhile the League is hunting down the Meta and forces the Meta to watch the miniture breakdowns each of Bruce’s sons/daughter have when they realize they can’t reverse it.
The Meta says the only way is a sacrifice. His boys volunteer but Clark says it’s his fault that Bruce was attacked so Clark will make the sacrifice.
It ends with Clark staring the Meta down and Alfred holding Bruce.