After Bane's siege of the city begins and Batman returns, Fox attempts to help him disarm the newly-weaponized fusion core, waiting in the reactor chamber for it to be returned by Batman.
After Bane's siege of the city begins and Batman returns, Fox attempts to help him disarm the newly-weaponized fusion core. The newly-weaponized fusion core is waiting in the reactor chamber for it. This was to be returned by Batman.