Katy Perry and Samberg become best friends, then meet up with a "handsome drug addict" (Matt Damon) and "brilliant lunatic" (Val Kilmer) who want to be best friends too. Perry and Samberg become more and more frightened until Perry abandons the three when the drug addict shoots himself during a game of Russian roulette. The lunatic then builds a time machine, retrieving two cavemen, Marilyn Monroe (played by Nasim Pedrad), Amelia Earhart (played by Vanessa Bayer), Abraham Lincoln (played by John Solomon), and Julius Caesar from the past, who, along with Samberg, the lunatic, and the lunatic's "failed bird-man experiment" (who briefly left the duo to have sex with a white girl at the mall) wish the audience a merry Christmas and a Happy New Year. (thetvdb.com)