I think あなた will be able to catch on. In 1963, the prisoners and the guards all disappeared. The goverment came up with a cover story that the prison had closed. The prisoners are coming back one によって one. They have to catch them before they do to much harm. They are also trying to figure out who took them and why they are coming back. Two main characters are the man in charge of hunting them down. He was a rookie cop in 1963. The blonde female officer working with him is the grandaughter of the first prisoner to come back. The 表示する switches from the past, '63 and the present day. Try watching a couple of shows. It's a great program.