SPOILERS FOR THE FINAL THREE EPISODES

!!!!!MAJOR SPOILER ALERT!!!!!

S9E21 "Livin' The Dream" airs 05/02/2013 and will be 1 hour long.

Andy attempts to get enough strength to quit his job and pursue his dream as an actor. Dwight receives his black belt in karate from his new Sensei. Jim returns to Scranton and spends time with Pam. Roseanne Barr guest stars. This episode concludes her 3 episode story arc. Michael Imperioli guest stars.

Looks like PB&J are A-Okay

S9E22 "A.A.R.M." airs 05/09/2013 and will be 1 hour long

As the office readies for the premiere of the documentary that night, Jim convinces Dwight, who is planning to propose to Esther, that he needs an Assistant to the Assistant Regional Manager, and holds tryouts to find the best candidate. Angela brings her baby to work after her daycare turns her away. Meanwhile, Andy  attends auditions for "The Next Great A Cappella Sensation." Clay Aiken & Mark McGrath guest star. 

S9E23 "Finale" airs 05/16/2013 and will be 75 minutes long.

Months after the airing of the documentary, the workers of Dunder Mifflin, past and present, gather for a wedding and a final round of interviews. Mysteries are solved, hatchets are buried, pranks are prunked. Mindy Kaling and B.J. Novak return as Kelly & Ryan. (And hopefully Steve Carell!)

omg...is ^that Holly?!

Hmmm...Dwight's cousin at what could be a rehearsal dinner or stag party.
Does that mean Dwight's the one getting married?

You Office writers....such kidders.

***TVLINE IS REPORTING THAT MICHAEL SCOTT WILL RETURN FOR A CAMEO APPEARANCE IN THE FINALE EPISODE.

Official episode descriptions from NBC.  Should any more spoilers come to our attention, we will add them.