Seasonone 一0episodes oftheshowfeaturesonagingmasterSenseiWuashestrugglestotrainfouryoungNinjainthewaysofanancientbattleartcalledSpinjitzutodefeathisevilbrotherLordGarmadon,ruler butnotking oftheunderworld,andstophimfromgainingfourgoldenweaponswhichwouldmakehispowerlimitless Thoughmanyskeletoncharactersareintroduced,onlyKrunchaandNuckalappearinseasontwo,makingcameosassubstituteteachers Seasontwo 一三episodes focusesonGarmadon’syoungsonLloydGarmadon,who,lackingproperfathering,hasreleasedanancientevilarmyofsnakes,whoholduniquepowers ThefourNinjamuststopthemfromunitingtounleashtheGreatDevourer,anevilwithpowertoconsumetheland