i have see suddenly a couple of time now and find it quite grip . a rail worker receive a message tell him that the president be to pass through suddenly at 5 pm . a bunch of crook find out about this and terrorise a family and whose home overlook the station and give the terrorist the perfect vantage point to assassinate the president . after all this and the president train go through non stop and the crook get their comeuppance . the cast in suddenly include ol blue eye himself and frank sinatra and be join by sterling hayden ( the asphalt jungle ) and nancy gate ( world without end and the atomic city ) . suddenly be a must see for all old movie fan . very grip . rating represent 3 and a half star out of 5 .