Kammala jumla mai zuwa: Bayan ya jagoranci Squadron No. 126 a kan hare-haren da aka kai a Normandy a lokacin mamayewar Allied, Plagis ya shiga cikin hare-haren da yawa a kan matsayi na Jamus a arewacin Faransa da Low Countries cewa
bi a cikin 'yan watanni masu zuwa. An harbe shi a kan Arnhem a Netherlands a lokacin Operation "Market Garden" a watan Satumba na 1944, amma ya sha wahala kawai ƙananan raunuka kuma ya dawo cikin sauri. Ya karɓi Dokar Sabis na Musamman a ranar 3 ga Nuwamba don "halartar[ion] a cikin yawancin abubuwan da suka faru a lokacin da aka yi mummunan rauni a... Jirgin ruwa na [Jamus], tashoshin rediyo, tankunan ajiyar mai, tashoshin wutar lantarki da kuma wasu wurare". Wannan ambaton musamman ya jaddada wani gwagwarmaya wanda karamin rukuni na mayakan Allied da Plagis ya jagoranci ya dauki karfi mai yawa na jirgin sama na abokan gaba kuma ya harbe biyar daga cikinsu, Plagis da kansa ya saukar da biyu. An bayyana Plagis a matsayin "mai jaruntaka kuma mai basira wanda misalinsa ya tabbatar da tushen tushen wahayi".