65-year-oldGaneshanhascompletelylostthezestforlifeafterhiswife'spassing.Butthenewsofhis7-year-oldgrandsonAadith'svisittoIndiagiveshimanewleaseoflife.WhenallattemptstobondwiththesuperherofanaticAadithfail,Ganeshanandhisretiredfriendsjoininthemadnessofpretendingtobeasuperheroleague.Theideaworkslikeacharm.LittleAadith'sexcitementknowsnoboundswhenhewitnessesasecretmeetingofthis'league'.Ganeshaniselatedtoreceivehisgrandson'sgenuineaffectionforthefirsttime.Butthehappinessisshort-lived.Theverynextdayasmallgirlgetskidnappedfromtheirapartmentcomplex.Asthepolicestartapreliminaryinvestigation,Aadithturnstohisgrandfatherwithaglintofexcitementinhiseyes.Heknows,justlikeanysuperhero,his'thaatha'willsolvethecaseinnotime.Leftwithnochoice,theoldmanturnstohisageingcronies.Andthus,withachingknees,weakeyesightsandgreyinghairlines,thisLeagueofSuper(senior)Heroesissetupontheirfirstmission.老伴儿去世后，他为了取悦孙子而组建了一个假扮的超级英雄联盟。当麻烦出现时，他们却不得不在毫无准备的情况下采取实际行动。