Second Resurrection

Hey,
My bible study group has completed a 3 month study of the 1000 years along with the resurrection issue. The first resurrection is obvious to us as to when it happens. The 2nd resurrection is still not completely understood as to when it happens. That is what motivated my original post about this issue. This forum is respected by many people in our study group. That is why I came to it for help. Thank you for your info.