The day after a police sting to catch a drug lord goes disastrously wrong, the events of the night before are reconstructed by the accounts of three police officers: Harvey Bullock, Renee Montoya, and a rookie.
After being knocked out in a mysterious warehouse, Batman wakes up in a world where his parents are alive, he is engaged to Selina Kyle, and someone else is Batman.
When a jealous scientist with a passion of Alice in Wonderland uses his mind control devices to have his dream girl for his own, Batman must intervene.