Superstore is a workplace comedy about a unique family of employees at a super-sized megastore. From the bright-eyed newbies and the seen-it-all veterans to the clueless summer hires and in-it-for-life managers, together they hilariously tackle the day-to-day grind of rabid bargain hunters, riot-causing sales and nap-worthy training sessions.
The Cloud 9 employees are rushing to finish re-building the store in time for its "Grand Re-Opening." Amy and Jonah confront their awkward kiss; Glenn discovers something about himself; Garrett avoids Jonah; Mateo worries about the voicemail he left on Jeff's phone; and Dina meets her match in guest star, Howie Mandel.
When Amy's daughter gets a job at Cloud 9, Amy turns to Jonah for advice on how to balance her parenting. Meanwhile, Garrett and Dina argue over who broke up with whom and Cheyenne tries to convince Mateo that the cute construction worker might just be flirting with him for store perks.
Tensions arise among the employees after an attempted robbery, pitting Dina against Jonah. Meanwhile, Glenn has a tough time firing the store security guard, and Amy discovers that her coworkers have been hanging out without her.
As Mateo turns to stranger and stranger home remedies for an ear infection, Amy and Jonah decide to offer an alternative to Cloud 9's terrible health insurance plan. Meanwhile, Glenn enlists Dina to help him get medical attention for his own embarrassing condition.
Trying to prove how "wild" she can be, Amy turns a boring Christmas Eve at Cloud 9 into a holiday adventure. Meanwhile, Jonah and Garrett's roommate issues boil over; and Glenn tries to prove to Mateo that Christmas is more than just "fine."
After a Cloud 9 employee posts a controversial video online, Dina enlists Cheyenne to help police the rest of the staff's social media accounts. Meanwhile, Amy learns something about Jonah that drives her to desperately pursue Instagram views, and Glenn suspects Mateo of rewards card fraud.
When Amy throws a party to prove how great she's doing post-divorce, she's forced to enlist Dina and Jonah's help, and Dina ends up making the ultimate sacrifice. Meanwhile, Glenn and his wife Jerusha are forced to conduct some personal business at Amy's home.
Amy finds herself caught in the middle of a conflict between Cheyenne and her ex-convict mom, Brandi. A personal agreement between Glenn and Dina gets heated when Glenn brings in a lawyer. When Jonah finds out that Kelly believes in angels, Garrett's perfect weekend plans of having the apartment to himself are threatened.
Still fresh from her divorce, Amy doesn't feel ready to start dating again. But when Mateo tries to set her up with his loser cousin, she gets determined to show everyone she can do better and breaks some hearts in the process. Dina takes advantage of a medical condition to scam Glenn into accommodating her every need.
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.
When Jeff leaves Cloud 9 to work at Target, Garrett leads Glenn to believe that he's poaching other employees to go with him. In return Glenn tries to poach employees from Target. Amy goes on a double date with Dina and Kelly and Jonah discuss moving in together.
Laurie, the new district manager, visits the store and decides to make some cuts to save money. Amy and Jonah plead with her to not fire anyone and search for other ways to make up the money. Meanwhile, Mateo struggles to prove his skills on the cash register.
When local small businesses set up shop inside Cloud 9, Glenn tries to help his wife Jerusha sell her handmade needlepoint, despite Jonah's concerns that he's pressuring his employees. Meanwhile, Amy doesn't feel Latina enough when a guy flirts with her in Spanish, and Garrett tries to uncover the truth behind a beer vendor's product.