It was just an ordinary day in the castle, but when a few days pass, Twilight gets a mysterious letter from an unknown pony and is taken to Alcatraz for no purpose of a crime. When the friends find Twilight not here the next morning they search all over Ponyville for their long lost friend. Soon they start getting worried about her, the past is coming back, meaniing that there are haunting memories of the old prison that doesn't seem right. The friends are desperate to find their missing friend, but what does it take to find their missing friend when they have to face many obstacles in front of their faces?

Note that Alcatraz is an old prison in San Francisco, but in this story it is called San Palomino. The story contains mere violence, if you are scared then don't read it.