Fan Casting Batman and Robin: Arkham Asylum

After finally capturing the Joker things go wrong and Batman and Robin have to save Commissioner Gordon and Arkham Asylum from the Joker and Harley Quinn. After battling several villains from Batman's rouges gallery Batman and Robin discover Joker has been using a titan serum to create an army of monsters. The movie ends with Batman using an antidote on himself after Joker injects him with the serum and then defeating a titan-effected Joker. In the aftermath all of the inmates revert back to normal including Joker who is taken into custody as officers take back the Asylum.