When The Blue Irises Are Born Again

S06e22 Cas opens the Door of Purgatory to steal the souls,he is stopped by the last person he was e latter persuades him that he is making a mistake and Cas gives up his plan,but the Leviathans escape before the Door's e two angels,together with the Winchesters,must deal with a war,the creatures,and with their personal matters.Full sum inside!