Liz has trouble adjusting to being a stay-at-home mother. Jack takes stock of his life, and Tracy struggles to get on without Kenneth.
Phil starts looking after his father following a fall, but a tragic accident ensues.
New Directions produces a sexy calendar to raise money for their trip to Regionals. Rachel is faced with a personal dilemma when she’s cast in a student film. Finn and Sue go toe-to-toe.
A global cataclysm, caused by a fatal accident in Geneva (Switzerland) during the implementation of the particle accelerator will lead to the crew and students of the school-ship Polar Star to live the greatest adventure of their lives. Isolated and aware that we only have each other, the ship will become their only home.
Restoring the first floor of the Dollar House continues as host and interior designer Nicole Curtis uncovers hardwood floors throughout the living and dining room areas. The dining room hutch is still intact, but there's a whole new fireplace mantle to build. Nicole also takes on a DIY project to prove that a pile of scrap wood can become a thing of beauty.
The by-election favourite, Nick Edwards, arrives in town and Bob is determined to derail him. From the pubs of Broughty Ferry to a glittering high society dinner, Bob chaotically attempts to gather support for his 'Local Man' campaign.
Elka becomes Victoria's agent; Melanie sets Joy up on a date with her boyfriend's friend; the women's monthly game night is dominated by gossip and secrets.
A visit from the council sees Broadhill retirement home facing closure. Hannah, the home's manager, rallies together her troops, best mates Derek, Dougie and Kev.
Sam and Dean are stunned when a man who claims to be Henry Winchester, their grandfather, suddenly appears in their hotel room demanding to know where he can find John Winchester, their father.
The guys meet their new boss when Alice quits being their old boss.
Joe and Mikey hire a helicopter for a salvage mission to retrieve the rare tailpiece from a Lockheed 10A that crashed in the Yellowknife woods forty years ago. It's a personal quest for Joe; he flew that plane at the beginning of his career. Justin and Cory battle severe icing that threatens to send them plummeting into the frigid North Atlantic on the longest ocean leg of their CL-215 water bomber journey to Turkey.
Bobby Bottleservice investigates paranormal activity, a couple builds a secret room, and Young Billy Joel goes on an adventure.
The arranged marriage of Philip and Elizabeth Jennings grows more passionate and genuine by the day, but is constantly tested by the escalation of the Cold War. Tensions heighten upon the arrival of a new neighbor, Stan Beeman, an FBI agent.
A troubled Chief Boden goes to the police when a man dies in a hardware store fire set by Ernie, the troubled teenage firebug he’s been trying to help, and his Uncle Ray. Meanwhile, Severide decides on his future and reaches out to his father. Elsewhere, Otis finds camaraderie when he fills in for a few shifts at the slowest firehouse in the city, and makes a decision of his own, while Dawson and Shay find themselves in a bad predicament during a call to a tenement.
Bobby, Krista and Blake are trapped in an abandoned Dew Line station -- only to find out they're not alone.
Thea is in trouble with the police after she gets caught using a drug called "Vertigo." Oliver thinks the only way to keep her out of jail is to find the dealer, a man who goes by the name of "The Count". Oliver turns to McKenna Hall, an old flame and current Vice cop, for help. Meanwhile, Laurel steps in to defend Thea, and Felicity gives Oliver some disturbing news about Moira.