Strange, life-sized toy army men have started appearing all over Gotham... armed with real weapons! When Batman investigates, however, he discovers that they are not toys, but people trapped inside explosive shells. All the clues lead to a former mob accountant named Humphrey Dumpler (AKA Humpty Dumpty) who used to work for crime boss Tobias Whale, but went insane when Whale tried to silence him before he could testify. Now, Dumpty wants payback and the next person he's targeted is Lt. James Gordon.