Sandra and Jerry are getting married! When Jonah’s attempt to help the caterers and Dina’s obsession with wedding security threaten to derail it all, it falls to Amy to make sure Sandra’s big day isn’t ruined. Garrett struggles with what to say in his Best Man toast, while Mateo finds that starting a new relationship may be more complicated than he thought.

Cloud 9 employees experience unforeseen problems with the new Zephra app. Dina's texts lead to animosity, Glenn struggles to deal with a teen craze, and Jonah attempts to prank Garrett to teach him a lesson.

Amy amps up the store's Halloween spirit to impress the new district manager, even setting up a haunted house that terrifies Glenn. Jonah collects the last of the union cards. Cheyenne and Mateo wonder if any Cloud 9 employees are capable of murder.

Jonah and Sandra represent the Cloud 9 employees at union contract negotiations with corporate. Worried about the union's fate, Amy, Dina and Cheyenne distract themselves by looking for the perfect Christmas tree. Mateo, Garrett and Glenn compete to see who can sell an unsellable item.

Amy joins Jonah for lunch with his parents and brother, but she's caught off guard by their dynamic. Dina worries about being spontaneous when her new boyfriend surprises her at work. Garrett and the others create a game around the store's customers.

After Mateo and Cheyenne disagree on the best way to celebrate her 21st birthday, Cheyenne enlists Bo’s help. Much to Garrett’s chagrin, Glenn plays matchmaker to help Jerry and Sandra complete their family, and Dina attempts to help Amy keep a big secret from Jonah.

When Amy hires Dina's nemesis Colleen, Dina blackmails Garrett into making Colleen's life a living hell. Jonah is forced to befriend Marcus in order to unionize the warehouse guys.

Amy tries to help her employees cope with Mateo's ICE detention - and with the introduction of a new robot co-worker that makes them fear they could be replaced.

As part of a new corporate initiative Dina is spearheading, the employees have to rush items directly to shoppers' cars. Amy's brother, Eric, visits and Amy thinks she sees a spark with Mateo. Garrett is impressed by a customer's high-tech purchase.

Amy tries to make Mateo her new assistant, leading to accusations of favoritism and a group competition in the store. Sandra gets caught in a power struggle between Glenn and Dina, and Jonah attempts to show Garrett that he's still one of the guys.

Amy attempts to gather glowing character testimony for Mateo's immigration lawyer, but comes up short. Jonah plans an engagement party for Sandra, infuriating Dina, while Glenn and Marcus compete for Mateo's old locker.

Amy, Jonah and Glenn hatch a plan to make Amy look like a tough boss after she loses face in front of the district manager. Dina recruits Mateo to help her run Cloud 9's shoplifter rehabilitation program -- with a few of Dina's personal tweaks.

Employees wrestle with the loss of beloved co-worker Myrtle… and the fact that she left a large sum of money to Jonah. Cheyenne recruits Mateo in a possible pyramid scheme, while Dina reconnects with a surprise visitor in the store: her father.

Amy organizes a community service event, but it’s jeopardized by Jeff's return and Glenn's desire to help his co-workers. Meanwhile, Sandra confronts Jonah about his strategy for soliciting donations, and Garrett tries to prove his intelligence to Dina.

When Amy has to bring her baby to the store, she grows frustrated with people's criticisms of her parenting and Glenn enlists Jerusha to help. Garrett helps Dina plan her first birthday with her boyfriend. Sandra and Cheyenne hatch a conspiracy theory.

After Cloud 9 receives a new cereal bar, Amy and Jonah speculate on Zephra’s ulterior motives. Dina enlists Cheyenne’s help in dealing with a scammer. Garrett tries to con Glenn into giving him paid time off.

When Carol returns to the store post-suspension, Amy struggles with employees who refuse to work with her. Garrett and Mateo take advantage of the gig economy. Jonah tries to convince Raise the Wage protesters that he's one of them.

The local mall has closed, and while Amy and Dina are excited about the influx of new customers, they quickly realize they're not all there to shop. Cheyenne learns she's not as cool as she thinks she is.

After Glenn has a health scare, Dina takes control of his nutrition and fitness. Jonah and Cheyenne try to get Amy to take a break from working too hard, while Mateo interviews for a new position in the store.

Amy and Jonah help Mateo run a toy drive to make him look good for his immigration hearing, but they clash with a competing charity rep. Sandra and Jerry ask Glenn to officiate their wedding despite Dina's protests. Cheyenne gets real with Garrett.

After Cloud 9's acquisition, Amy struggles to contact the store's new parent company, Sandra enlists Garrett and Dina's help to stand up to Carol, and Glenn wrestles with a big career decision. Meanwhile, Jonah takes up the cause of gender equality.