When Lorne performs a spell on Cordelia to restore her memory, it inadvertently causes the gang to revert back to their high school personas and leaves them with no memories of each other.
Eventually, they discover that the only way to reverse the spell is to kill a vampire, just as Angel realizes that he is one.
original airdate--November 10,2002 rating--2.4/3.6 million
music--"Angel Main Theme - the Sanctuary Extended Remix by Darling Violetta
Goofs: When everyone goes back to being 17 no one knows who the other is, but Cordy met Angel when she was 16.