The employees celebrate the past, present and future of Cloud 9. Series finale.

Amy and Jonah find themselves on opposing sides as corporate tries to win over employees by showering them with treats. But when the company's tactics grow more extreme, everyone must band together to save one of their own.

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.

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 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.

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.

Some inside information leads the Cloud 9 employees to try to make the store seem perfect for one day.

After Amy calls corporate to talk about maternity leave for employees, everyone ends up in a frenzy when Jonah mentions unions.

With a massive snowstorm beating down on St. Louis and an unsympathetic home office, the Cloud 9 employees and customers get snowed in, leading to escalating tensions and infighting.

Secrets come pouring out after the employees get locked in Cloud 9 overnight.

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.

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.

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 the employees start to worry about Jonah's emotional state, Mateo, Glenn and Sandra try to help him move on after Amy. Cheyenne is forced to shadow Carol for the day. Garrett helps Dina search for a secret location in the store.

When Jeff returns to push customer satisfaction surveys, Mateo enlists Garrett's help to hide his relationship. Dina, Glenn and Cheyenne's plan to boost the scores creates new and bigger problems. Jonah tries to convince Sandra to value herself.

Amy and Mateo play dirty to win the employee costume contest after learning first prize is a paid day off; Garrett is tormented by the store's repetitive Halloween music; and Glenn fears he's being followed.

Amy and Jonah get a taste of how the other half lives when they attend a managers' conference; Mateo unwittingly reveals a secret about himself; Garrett and Dina face the trials and tribulations of the giftwrapping station.

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.

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.

Glenn pits the employees against each other in a contest to see who can sell more stuff.

When Glenn and Dina offer amnesty to all the employees for any bad things they confess, Garrett and Cheyenne try to decide how to take advantage of it. Meanwhile, Jonah and Amy try to defuse an awkward situation that has the whole store gossiping.

As the store prepares to host a company-wide Town Hall meeting, Amy and Jonah are forced to put their conflicts aside and rally their co-workers to confront the CEO. Meanwhile Glenn struggles with the pressure of speaking to a global audience.