After Hank watches Hippothermia, an apocalyptic movie, the citizens of Dog River decide they need an emergency plan in case the end of the world is near. Davis, Karen and Wanda argueover who would lead Dog River in an apocalypse, while Hank and Oscar build a disaster shelter. Sick of Brent and Lacey's bickering, Emma traps them in her cellar to force them to hash things out.

Lacey wants to take pictures of a Blue Moon rising over Dog River, but things get awkward when she and Brent realize just how romantic moon-gazing can be. Hank is suspicious when Oscar is nice to Emma. Meanwhile, Wanda is jealous when Davis wins an advance copy of the Max Braylorn Spy Trilogy and sets out to "borrow" the book before Davis can take his time with it.

Wanda convinces Brent and Hank into re-taking their high school exams to see who is smarter while the Citizens of Dog River plan a 70s party at the bar. Lacey, who is used to being in control, is perturbed by the party planning committee and their lack of direction. Davis and Karen argue about their costumes for the big event while Oscar’s sexy getup throws Emma into a tizzy.

Hank and the locals jostle for a seat in the sun at the Summer Solstice Deck Party at The Ruby. Wanda observes (and annoys) guests when she tries to complete an article for a human psychology blog at the party. Brent secretly sells the special popsicles Emma has made just for him while Oscar experiments with his own popsicle recipes against doctor's orders. Meanwhile, Davis and Karen are forced to share a gun when Davis' revolver is sent in for repairs.

Karen and Davis discover a mannequin dumped in the woods and try to solve the crime; at Corner Gas, Brent surprises Wanda with a scanner; in The Ruby, Lacey, Oscar, Hank, and Emma get drawn into an unusual bet about hand sanitizer.

Fitzy appoints Wanda and Hank to the Special Rodents Unit to deal with the town's rat problem, annoying Lacey. Davis tries to hide how he crashed the police cruiser from Karen. Oscar and Emma uncover an old secret of Brent's while cleaning the shed.

Lacey plans a parade for Dog River Days with all the fixings.

The Corner Gas parking lot becomes a drive-in – thanks to Hank – putting Davis and Karen on high alert for potential criminal behaviour!

Brent and Lacey go to great lengths to find each other the perfect Christmas present.

Brent discovers his parents put money aside for him, but Oscar's forgotten where it is; Karen and Davis are hurt to learn how often people lie to the police and enlist Wanda as their lie detector.

Hank is upset when Wanda replaces him as Corn Maze designer at the Dog River Corn Festival; Emma and Oscar compete with Davis to see who can complete their volunteer task first; Brent and Lacey raise money by selling popcorn.

It's Halloween in Dog River and Brent, Lacey, Wanda, and Hank face a possible haunting at Brent's house.

When a fire destroys The Ruby, Lacey wonders if it's a sign. Is she in the wrong place? Should she shake her life up and move away from Dog River? Brent has to face a world without Lacey... and he doesn't like it.