Doesn't sound like much material for an entire series but JJ must have impressed the big boys upstairs with the two episode pilot now that they are picking the show up. I have no idea what direction this show will go but I'm sure time traveling hijinks will ensue. Hopefully it will last longer than three episodes.
A drama about a group of missing Alcatraz prisoners and guards who reappear in the present day and the efforts of a team of FBI agents to track them down and unravel the mystery behind their disappearance 30 years prior.
ETA: They do realize that 30 years ago was only 1981 and Alcatraz was decommissioned as a prison in 1963, right?