An STD outbreak amongst Pawnee seniors prompts Leslie to conduct a sex education class. Meanwhile, Ron helps Tom adjust to life without technology after his gadgets are taken away, and Ben and April meet Congressman Murray for the first time.
The staffers hit the road in a rented bus when the building is deemed unsafe. Meanwhile, Nellie reaches out to Andy for help in adopting a baby, and Jim uses pie to spread cheer to Pam.
With the garbage men of Philadelphia on strike, Frank concocts a plan to undercut the union and get the contract to collect the city's trash.
Luke wants to quit magic and Phil just can't seem to accept it. Meanwhile, one of Gloria's new pregnancy symptoms is snoring and she's keeping the whole house awake, forcing Jay to take desperate measures; and Mitch and Cam's household dynamic is put to the test when they decide to swap duties -- Mitch staying at home with Lily while Cam goes off to work at his new job as the music teacher at Luke and Manny's school.
Severide is hiding a serious shoulder injury sustained in the fire that killed Andy Darden, and grapples with his guilt as he fights to rescue a construction worker trapped in a building collapse. Adding to the burden, Darden's wife Heather turns on Severide at the annual firefighters' barbecue, blaming him for her husband's death. A call is made to an accident site at Hancock Tower, where two teenagers are pinned in a vehicle trapped beneath the falling debris of a broken window washer's cart. Meanwhile, Casey and Hallie work to figure out their future together.
After Mildew poisons all the dragons on the island, he is forced to help Hiccup, Stoick, and Gobber find and capture the ferocious Scauldron in order to get the antidote.
A biracial boy has penis concerns, and an inner-city substitute teacher takes roll call.
When a girl is shot and killed at a large rave in the desert, the CSI team has to search for clues, find her missing friend and bring the killer to justice.
Sam and Dean investigate a string of unusual murders where the victims were all recipients of organs from the same donor. The killer is captured, but things become even more complicated when the brothers find their killer in a trance mumbling an ancient prayer.
Terrifying evils blur the boundaries between reality and insanity at the Briarcliff Manor.
An UNSUB who kidnaps families with the intention of making them admit to and pay for their indiscretions.
A neighbor accuses Frankie of stealing her hose; Sue cancels a road trip to Cincinnati after seeing Mike's paycheck; Brick learns about the birds and the bees.
Oliver heads to the courthouse to get his death certificate repealed and is pleasantly surprised to run into Laurel, who is there prosecuting Martin Somers, a criminal with ties to the Chinese Triad. Oliver recognizes Martin's name from his father's book and sets his sights on taking him down. Martin orders the Triad to "take care of" Laurel so they send their top mercenary - China White - after her, an act that culminates in a battle between Arrow and China White. Meanwhile, Moira and Walter ask Oliver to take over the company.
It is time for Butters to begin a journey where he will follow in the path of his Hawaiian ancestors.
Javier causes havoc in the hotel when he hides opium in the guests' soup. Alicia uncovers a strange truth about her father's death.
An insight into the everyday lives and struggles of the families living in a tightly-knit close in Mount Pleasant.
The ninjas, Lloyd, Sensei Wu and Misako journey to the Dark Island to find a Temple of Light that can restore the ninjas' elemental powers.
Tessa returns to Chatswin after spending summer with her grandmother; George finds Tessa's renewed interest in her mother threatening; Tessa signs up for the Fall Follies; Noah and Dallas compete for Carmen.
Shane's and Jacksons business is booming. Expansion is afoot and their future looks rosy. But Shane suddenly turns charitable and begins giving the homeless their stock, infuriating Jackson and causing a rivalry between the two business partners. Meanwhile, the residents are shocked by Patty's sudden generosity towards her neigbours. But when she begins hosting a coffee morning for the elderly, they discover a scam is afoot, and the whole estate turn against her. An outcast in the community, Patty finds her problems only just beginning when she is targeted by a hate campaign. And, Billy is having trouble in the bedroom, and a devastated Mimi is convinced he no longer loves her.