Zoe, Lassie and Harvey head into the high country with Graham when the waters of Diamond Lake begin to mysteriously recede, threatening the animals who drink from the lake. Graham fears that some obstruction may have blocked the flow of water. When the rangers discover a logjam that has dammed the creek that feeds the lake, they set to work busting it up... never knowing that Graham has become trapped in an underground channel that will flood the moment the logjam is broken.
Lassie and the kids have found a family of Black-Footed Ferrets living in the park! These rare animals are endangered and the kids are excited to see their den protected. At the same time, Robert Humphrey has come up with a plan to attract tourists to the park by paying Nick Connelly to impersonate a legendary "Loch Ness" style monster. When Humphrey's plan is more successful than he expects he sets off a stampede of curious tourists that threaten the endangered animals.
Humphrey's niece, Samantha, brings a group of girls up from the city for her birthday party, she and Zoe don't get along. When Samantha's choice of skating ponds puts her whole group in danger, Zoe intercedes, saving Samantha and finding a true ally - which is a good thing, because it's going to take both of them together with Lassie to save Harvey's life.
Harvey's father was a famous rock climber who died when Harvey was just a baby. When a Park event leaves Harvey feeling the loss of his father very strongly, he sneaks away from the Valley to make the dangerous climb to a remote lake that was his father's favorite spot in the world. Guessing where he's gone, Zoe, Lassie and Harvey's mother, Beth, hike after Harvey, hoping to catch him before he gets into real danger. In the end, Harvey's own gifts and Lassie help the boy reach the remote lake and share a moment with his father.
It's a Brown family first when the wives take a road trip to San Francisco without Kody! The wives decide to work on their relationships by going dress shopping for their commitment celebration. And with the women gone, Kody is home alone with 17 kids.
Bruce and Kris discuss their future while Khloé and Lamar's relationship continues to decline. Kris and Bruce decide to separate, but not divorce, and the Jenner and Kardashian children acknowledge the effect that the separation will have on Kendall and Kylie.
Fiona begins to enjoy the perks of living life just above the poverty line. She uses her newly activated health benefits to take the kids for checkups. However, when a road rage incident damages the company car, Fiona tells a much bigger lie about how it happened. Meanwhile, Lip seems to have lost his mojo as he struggles in school and with the ladies.
When Charlie invites his boss over, Stephanie and the children make the wrong impression.
Teddy is disappointed when she is waitlisted at her first choice for college.
Matt's custody battle for his kids gets more difficult after he gets a DUI with them in the car. Sean struggles with the news that Beverly spent a night with ruggedly handsome Rob. Carol, once again, falls under the spell of her charismatic new boss.
Amy is forced to face her fears and save the life of the horse that injured her.
Marty has a confusing meeting with Roscoe's new crush; Jeannie makes some power moves to win an account with the Department of Defense; Sarah tells Doug that she wants them to have a baby; Clyde witnesses Monica push a junior analyst a bit too far.
After the closure of Nonnatus House, the nuns and midwives finally move into their new premises. Sister Winifred arrives from the Mother House. Jenny is worried about new mother Merle’s mental state and the welfare of her baby who isn't feeding properly. Dr Turner is worried that it could be something more serious.
The two families are forced to confront their decisions as Sara's life hangs in the balance.
Under pressure to land a suspect in the Lange murder, Quesada warns Hart and Cohle that they might be replaced by three detectives from a new task force. The pair lobbies for extra time to follow up on a lead that takes them from a rural cathouse to an incinerated church. With his marriage to Maggie already strained by work, Hart finds respite away from home.
With the gang still reeling from Bo's shocking announcement, Kenzi signs them up for an undercover mission at a mysterious corporation. Meanwhile, Bo retraces the steps that may lead to her destiny.
Five years since the store's opening, business is booming for Harry and new faces have joined old favourites at Selfridge's. Rose makes a surprise return home with a mysterious new friend in tow, Lady Mae is forced to deal with troublesome husband Lord Loxley who arrives in town from the country, and Agnes returns from a creative secondment in Paris - but is Victor pleased to see her?
Young swordsman d'Artagnan arrives in Paris seeking the man responsible for killing his father – a quest that brings him into conflict with one of the king's guards. But as he quickly discovers, when you take on one Musketeer, you take on them all. It's soon back to business when the swashbuckling heroes are ordered to find a missing soldier who was carrying important letters on behalf of King Louis, while the dastardly Cardinal Richelieu plots to increase his political power.
One year after Ryan Hardy's pursuit of serial killer Joe Carroll, a healthy and healed Ryan is living in New York City. On the surface, it appears Ryan's gotten his life back together. But deep down, his obsession with Joe continues to grow. Then, on the anniversary of Joe's death, a new murderous rampage leaves everyone shocked and determined to discover the truth.