 CONT: SPOILER: After Horatio helps the girl to the bridge and loses  her to enemy fire, Acting Lt. Archie Kennedy runs over the bridge to  help Horatio back across. As they are crossing the bridge, the  explosives go off one by one, in the wrong order. Since the fuse was  lighted on Matthewss and Styless side (where Hornblower and  Kennedy were heading), the first to go off should have been the  last, in which case they would not have made it across.