In 1963, the authorities officially announced the closure of the most impregnable and legendary prison - "Alcatraz". It is noteworthy that it was on an island, separated from the water surface of land, for which he received a second name - "The Rock". In the history of Alcatraz from it no one escaped. Closing explained by increased cash costs for maintenance and dilapidated buildings.
But in reality it was quite different. On the island the boat comes with two police officers that no one meets. It turns out, it disappeared from prison all its inhabitants, including the guards. It is this inexplicable event, and was the precedent to closing. The authorities hide the ends in water and forgot about it.
However, after a while, these days, there is unusual. In our world back disappeared from Alcatraz, and they did not age, in spite of the passed years. Notorious criminals, they start killing people again, their sophisticated ways. For their neutralization taken Emerson Hauser - a federal agent, he helps police Rebecca Madsen, as well as Dr. Diego Soto - an expert on Alcatraz. Inlet of their work, it appears that the prisoners who somehow manages and makes them look something strange. The team will catch a lot of known criminals. Hauser also has its secrets, detainees sent back to prison bunker, about which no one knows. The answer lies in the grandfather of Rebecca, Tommy Medsene. Above it and more over a number of prisoners in the "Rock", put the terrible experiments. Having solved the nature of which may be closer to the secret of Alcatraz and its temporary phenomenon.