The beginning of beautiful hatred between Archer and his new stepfather plays out as the two are chased by gangsters.

Jeff competes to earn the group places in the over-booked 'History of Ice Cream' class, while Abed struggles with the inevitable end of their time at Greendale, causing him to enter a 'happy place' in his mind showing bizarre alternative versions of Greendale. Annie and Shirley pull pranks around the school.

When Sherlock's ex-drug dealer, Rhys, comes around for help, Watson is concerned about Sherlock's sobriety after Rhys implies that Sherlock on drugs made a better detective.

Finn encourages the glee-club members to channel their inner divas. Elsewhere, Rachel's arrogance causes Kurt to reach a breaking point; and Emma throws herself into wedding preparations.

Competition heats up as several of the doctors fight to become the new face of Seattle Grace; April brings in an emergency case, and Jackson and Alex work with a transgender teen couple. Meanwhile, the hospital implements new policies which test the patience of the staff.

Actress Sally Field; Baltimore Ravens' John Harbaugh; a performance by Elvis tribute artist Shawn Klush.

Ann tries to get to know herself as Leslie meddles in one of her biggest life decisions. Things go south when Ben enlists the guys to help choose a caterer for the wedding.

Finch and Reese meet their match: a tech billionaire whose curiosity and endless resources could expose their identities and ruin their efforts to save his life.

As David uncovers the truth about the Cytron case, things come to a head for Olivia, Cyrus, Mellie, Hollis and Verna. Backed into a corner, the five conspirators go to extremes and, in some cases, unconscionable lengths to protect themselves and/or the ones they love.

With the resources of the firm stretched to the limit, Daniel Hardman returns with an outrageous lawsuit against Jessica.

A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements; while Howard is away, Raj helps Mrs. Wolowitz out.

A snowstorm slams the Northeast, Senator Stacey Campfield homes in on kids' sexuality, Facebook promotes hookups, and Benh Zeitlin explores Louisiana's Bathtub country.

From "Identity Thief", actress Amanda Peet; musician Paul Williams.

The staffers pair up as faux couples to score a Valentine's Day discount at a mall. Erin tells Pete that she'll break up with Andy when he returns, but Pete has his doubts. Jim and Pam socialize with the documentary's soundman.

Shane leads an expedition to a desolate island off the coast of Nova Scotia, where he believes the secret of the cure lies hidden. On the trek to the island’s interior, Rebekah and Elena continue their bitter rivalry, Stefan does his best to keep the peace, and Damon accuses Shane of leading them into a trap. Bonnie and Jeremy try to figure out the message of the Hunter’s mark, while Shane reveals more of the legend of Silas and the witch Qetsiyah, along with his own personal history. Back in Mystic Falls, Tyler confronts Klaus, and Caroline is caught up in the violence that follows.