Season 4 of the acclaimed mockumentary opens with the discovery that Ryan Howard (B.J. Novak) has ascended the corporate ladder from fresh-faced intern to stylishly bearded corporate chieftain. The young gun promptly exercises his authority by charging Dunder Mifflin into the digital age, an affront to technologically dull Scranton branch boss Michael Scott (Steve Carell). Here are the romantic "fax" of life at the office: Jim Halpert (John Krasinski) and Pam Beesly (Jenna Fischer) are hot, Dwight Schrute (Rainn Wilson) and Angela Martin (Angela Kinsey) are not, and Andy Bernard (Ed Helms) and Angela are giving it a shot. A giddy Jam (Jim/Pam) proudly bring their hushed and long-delayed romance to public light, even spending an unsettling night at the Schrute family farm. Dwight confesses to killing Angela's treasured cat Sprinkles, prompting Angela to terminate their romance, which leaves tight Dwight heartbroken and miserable. Angela, in turn, falls into the arms of newest staffer Andy, but only reluctantly. As for Michael, he huffs and puffs through a 5K fun run; hopes to attend a Web-site launch party in the Big Apple; faces a ballooning personal debt; goes on a wilderness survival retreat; butts heads with desk jockey Stanley Hudson (Leslie David Baker); and travels a bumpy-road romance with high-maintenance ex-bigwig Jan Levinson (Melora Hardin), who's mired in a messy wrongful-termination lawsuit with corporate. All this doesn't stop Michael from obsessing over a model in an office-supply catalog or clubbing for "hot hotties" with Ryan in New York. As the year winds down, slumping human-resources drone Toby Flenderson (Paul Lieberstein) decides to quit his post and move to Costa Rica. This development prompts the arrival of a new HR worker named Holly (Amy Ryan), whose sunny presence clearly begins to brighten Michael's downcast world.