Superheroes. Batman's Legacy

Gotham is in panic. Batman disappeared three days ago after a signal from the abandoned "Arkham" station. Strange events began to take place in the city: power cuts are taking place, criminals are emboldened, and rumors are spreading through the streets that the Dark Knight has fallen. You are members of a secret group once created by Batman for emergencies. He called you Gotham's reserves - those who must act if he is gone. "If you are hearing this, it means the situation is dire. Sir has disappeared, but he left instructions. The vault will only open to those who prove they are worthy of his legacy. Time is running out".