The Sibunas discover the man in the tank is Robert Frobisher Smythe – what exactly are the adults plotting? Eddie resolves to reveal Denby's true identity. Meanwhile, Jerome tries to win Mara back.
As Jeff competes for spots in an overbooked 'History of Ice Cream' class, Abed copes with the looming end of their time at Greendale by retreating into a surreal mental 'happy place', while Annie and Shirley engage in school-wide pranks.
The beginning of beautiful hatred between Archer and his new stepfather plays out as the two are chased by gangsters.
Ann tries to get to know herself as Leslie meddles in one of her biggest life decisions. Meanwhile, things go south when Ben enlists the guys to help choose a caterer for the wedding.
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.
When the lead in the school's production of "Phantom of the Opera" gets sick, Manny is willing to do anything to land the lead; Phil and Jay wind up in a golf-off with Mitch and Pepper; Gloria and Alex visit a psychic.
When CSI Mac Taylor decides to surprise his girlfriend in Vegas, he discovers she’s missing and asks his friend D.B. Russell for help. The crossover concludes on CSI: New York S09E15 Seth and Apep (II).
A rogue dragon a Whispering Death shows up in Berk, tearing up the village. He's on a mission to find Toothless and settle a score. Despite Hiccup's efforts to help, Toothless insists on facing the dragon alone. But unlike their past battle, Toothless's inability to fly my prove to be his undoing.
Liz and Liz promote yogurt water; Rich Dicks go shopping; Oh Hello's Gil & George play a prank.
Frankie and Mike worry that Axl may not get a sports scholarship; Sue's school science project involves smiling; Brick wants an iPad.
Severide finds that he shares a familiar past with Eric Whaley, the Lieutenant who was brought into the firehouse to help out. Dawson lets Shay in on her secret, while Casey deals with family issues. Meanwhile, a bad batch of heroin on the streets has Boden and the team scrambling, while Clarice and Shay find they have a new problem to overcome.
It's Derek's 50th birthday; what better way to celebrate than with a party at Broadhill retirement home?
Justin and Cory are stranded in Croatia while trying to complete the delivery of two CL-215 water bombers to Turkey. Metal rock band Iron Maiden's lead singer Bruce Dickinson flies Buffalo's DC3 from Edmonton to Yellowknife – then tries his hand at the four engine DC4. Mikey goes on a fitness blitz to meet the weight requirement to fly in an CF-18 fighter jet during the Yellowknife Airshow.
Sam and Dean investigate the death of Rabbi Bass, who appears to have spontaneously combusted. The case becomes even more confusing when they learn that the Rabbi was researching Nazi Necromancers.
Cyrus Vanch, a nefarious criminal, is recently released from prison and intends to re-secure his position as leader of the underworld. His first step is to take down his biggest opponent in the city - Arrow. Meanwhile, Oliver shows Moira his father's notebook and questions her about the names on the list. Thea is miserable as she starts her internship with Laurel at the legal aid office and Detective Lance makes a deadly mistake that puts Laurel in the crosshairs of Vanch.
Looking for a campaign boost, Bob courts both the religious vote and the women of Broughty Ferry in a daring twin attack. Can he find himself a girlfriend and turn around his faltering campaign? A romantic date brings unexpected danger.