Unchained (2021)

In this timeline, a younger Bruce Wayne gets himself into deep water after discovering a new threat to Gotham City has arisen and people on the street call him Black Mask. Bruce with the help of Alfred Pennyworth re-connect with his longtime partner in crime/best friend Dick Grayson aka Robin. Together they track down foes they have gone against in the past and hope that they will discover who is Black Mask and put an end to him before it's too late with the help of Commissioner Gordon.