"The last two episodes are a huge payoff to the viewers who have tried to put together the mystery week to week," says Jones. "And I think fans will be really shocked."
Also the creator of "Fringe" and "Lost," executive producer J.J. Abrams believes the prison is a perfect backdrop for a series with so many unanswered questions.
"'Alcatraz' itself has such a mystic, the island, the notion of this place that is in such plain view, that kind of looks like a haunted house," explains Abrams. "There's the name, there's something chilling about the name."
Click on the video to see more from the cast, including what crimes would land them in "the rock."