An nie ▁Wal lace ). ▁ ▁In ▁series ▁ 8 , ▁Frank ▁is ▁ready ▁to ▁marry ▁Lib by ▁and ▁he ▁goes ▁missing ▁on ▁his ▁stag ▁night . ▁Lib by ▁starts ▁putting ▁up ▁post ers ▁because ▁of ▁his ▁disapp earance . ▁Carl ▁and ▁Ch es ney ▁Kar ib ▁( Q as im ▁Ak ht ar ) ▁find ▁a ▁video ▁on ▁the ▁internet ; ▁it ▁is ▁Frank ▁having ▁sex ▁in ▁public . ▁Lib by ▁wal ks ▁in ▁and ▁sees ▁the ▁video . ▁In ▁the ▁feature - length ▁ 1 0 0 th ▁episode ▁Frank ▁is ▁accused ▁of ▁be ating ▁an ▁old ▁lady ▁who ▁is ▁well ▁known ▁on ▁the ▁estate ▁for ▁her ▁scratch - card ▁w inn ings . ▁Frank ▁suff ers ▁a ▁black out ▁and ▁throughout ▁the ▁episode ▁has ▁flash back s ▁of ▁that ▁evening . ▁Not ▁knowing ▁if ▁he ▁actually ▁carried ▁out ▁the ▁attack ▁he ▁hands ▁himself ▁into ▁the ▁police . ▁Carl ▁is ▁convinced ▁Frank ▁is ▁innoc ent . ▁He ▁dig s ▁into ▁the ▁events ▁of ▁that ▁night ▁and ▁finds ▁that ▁a ▁local ▁gang ster ' s ▁brother ▁had ▁actually ▁carried ▁out ▁the ▁attack . ▁Frank , ▁along ▁with ▁Ke v ▁dev ise ▁a ▁plan ▁to ▁work ▁with ▁the ▁police ▁and ▁cut ▁a ▁deal ▁with ▁the ▁gang ster ▁that ▁sees ▁Frank ▁set ▁free . ▁ ▁From ▁Series ▁ 9 , ▁Frank ▁is ▁the ▁only ▁original ▁member ▁of ▁the ▁Gall ag her ▁family ▁left ▁after ▁Carl ▁leaves ▁to ▁join ▁the ▁police . ▁He ▁now ▁we ars ▁a ▁dark er ▁version ▁of ▁his ▁fond ▁par ka