The Carol Burnett Show

I'm so glad we had this time together Just to have a laugh and sing a song Seems we just got started and before you know it Comes the time we have to say, 'So long.'

CBS Eyeconic Then. Now. Always. The CBS eye logo turns into two eyes and they is animated to play characters from famous CBS shows. Lucy, I'm home! (I Love Lucy) Oh, Rob. (The Dick Van Dyke Show) *Tarzan yell* (The Carol Burnett Show) Come on down! (The Price is Right) It's gonna be legen... wait for it... dary. (How I Met Your Mother) Welcome to the Late Show everyone. (The Late Show with Stephen Colbert) *tick tick tick* (60 Minutes) Bazinga (Big Bang Theory) ... for the win! (NFL on CBS) NCIS This is exciting (Young Sheldon) Thank you so much for watching (The Late Late Show with James Corden) Then, now, always CBS

Liz becomes angry when no one seems to remember her 40th birthday on show night; Tracy decides to break character all night; Jack struggles with the consequences of his promises to not drinking during Avery's pregnancy.

Boone steals the decreasing water supply in a misguided attempt to help everyone, but the survivors turn on him. A sleep-deprived Jack chases after what appears to be his deceased father in the forests and eventually discovers caves with fresh water. Jack comes to terms with his role as leader. In flashbacks, Jack goes to Australia to retrieve his deceased father.