On a routine trip returning The Joker to Arkham Asylum, the Batman himself must deal with traps set within its inner sanctums, purposely set by the now escaped Joker, along with the rest of his rogues' gallery that are now free within the premises.
Welcome to the madhouse
Did You Know?
Even though this is an open world "sandbox"- type game, limited to Arkham island, at no point does Batman take a rest from his detective work. The game saves every time the player enters a new area on the island. See more
After defeating Bane, Batman activates the Batmobile, still parked in Arkham North. When Bane surfaces and tries to kill Batman, we see the Batmobile barreling down a hill towards him. This means the car would somehow have to go through two locked doors, which appear in one piece and still locked later in the game, in order to make the journey to Arkham West near the water where Batman and Bane were. See more
All units proceed to Gotham City Hall. The Joker has been apprehended. Batman is now en route to Arkham Island.