it was friday night , right before the osberg kids were to depart for summer camp in maine & all 4 osberg children went , and that would free up gemma to enjoy her own family an summer when victor and lena went traveling to sardinia and europe , but it was to be a special friday dinner and a very close friend of the osbergs , elle moss , was coming by with her boyfriend werner klempner who played the commandant on the tv show hogans heroes .