In Gotham, an already established Batman fights crime. After Bruce Wayne is attacked by Mr Freeze while watching the circus, many of the occupants were killed. One of the performers who Bruce protected learns of his true identity and they fight and defeat Mr Freeze together. Bruce notices the kid’s skill and takes him In as an apprentice. In a post credit scene the attack is revealed to have been planned by someone who wanted the kid dead. Someone who flips a coin to decide his next move.