Avid inventor Harley is all set to accept a community award, but must first devise a way to get her family out of the house and to the ceremony on time.
Harley's parents forget her birthday, so she devises a plan to use their guilt as a way to get the ultimate birthday gift.
To raise money to replace her family's broken tablet, Harley decides to rent out the family's couch to a foreign exchange student.
When Harley procrastinates on finishing her Science project, it inadvertently leads to the WIFI going out, leading her entire family to head out to the movies.
Harley decides to go solo on a Mother's Day gift, rather than include the rest of her siblings.
Harley decides to host an outside slumber party to watch a passing comet with her friends.
When Dad goes out of town, Harley must find her mom a new friend after she becomes overly clingy.
With basketball season over, Harley helps Georgie secure a spot on the golf team; mom puts the kids up to a cooking challenge when they complain about her food.
Harley rallies her siblings and parents to take a trip to Florida to celebrate Christmas with their abuela, but in true Diaz fashion, things go awry. One rerouted flight, an unintended pit stop and a damaged rockstar tour bus later, the Diazes find themselves stranded in a small town without phones, credit cards or money, where they must compete with the town residents in an "Iron Elf" competition to get their bus repaired and make it to Abuela's in time for Christmas.
Harley builds an escape room in an effort to bond with her siblings.
As the Diaz family prepares to shop at Mega Mart, its store manager Rodney is keeping an eye on them as they have two strikes against them for past mischief. With a third strike, he can ban the family from the store and highlight them on the store's wall of shame. If the children can avoid getting into trouble, Suzy and Tom are promising each of them a family-sized pizza. Harley develops a way to communicate with her siblings around the store, using Tom's old cell phones which also serve as a source for live-streaming.
Harley makes one last effort to divert Rodney's attention so the entire family can leave the store unscathed. Rodney catches up to them though and bans them. When Suzy confronts him about his customer relations, pointing out she was watching the children's live streams as they were getting caught, Rodney retracts his ban. Harley and her siblings celebrate, only to realize they will not be getting any pizza because Suzy reminded them that she watched their live streams. This disappoints the children and Tom.