Shadow was exploring an abandoned laboratory, the place where he had been created. He wanted answers about his past, so he returned to the place where it all began.

He knocks down a door to enter a room. Upon entering the room he noticed some empty capsules, some were broken and another intact, but there was a capsule itself that caught the black-haired hedgehog's attention.

One of the capsules was filled with a type of liquid, there was a sleeping hedgehog inside the capsule, you.