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Nicky, Ricky, Dicky & Dawn
Harper家是一个四胞胎家庭。10岁的姐姐和弟弟们是家中四宝，四个人除了生日是同一天，其他没有一点相同之处。 大姐Dawn只比三个兄弟大几秒钟，不过还是一个很称职的姐姐；她看上去像个假小子，也喜欢女孩子钟情的事情；即使弟弟们总是打扰这位姐姐，她是深深的关心他们。 Ricky是个书呆子，一天到晚拿着书和作业；有些洁癖，偶尔还会装腔作势。 Dicky是个爱耍帅的小子，在他眼里，任何事都不如外表帅更总要。 Nicky是最小的弟弟，全身幽默细胞，有他在的世界充满欢笑。 妈妈Anne和爸爸Tom深爱的这个家和孩子们，他们也是家中四宝的精神支柱。
When the quads destroy their school, they must join a new one mid-semester; as they try to fit in at the new school, they must keep their friends from discovering they destroyed the old one everyone loved.
A misunderstanding almost causes the quads to break up Mae and Miles and disrupt the boys' plans to attend a wrestling match.
Nicky, Ricky and Dicky accidentally turn Dawn into "BeyDawnce" using techniques they've learned in their human behavior class to help her overcome her fear of auditioning for the Glee Club.
The quads learn the dangers of misrepresenting oneself on social media when they pretend to be people they are not.
To avoid getting detention for being late, Nicky lies that Squishy Paws got in a terrible accident. Dicky and Ricky start using the Squishy Paws excuse to get what they want out of sympathy.
The quads try to earn money for a pool so that their house can be the place everyone wants to hang out at during the summer.
When the quads discover that Dicky is a cup-stacking prodigy, they decide to get him into professional cup-stacking tournaments and use his special talent for their own gain.
When the quads each try to be someone they are not, they all learn a valuable lesson about being true to themselves.
When the quads are pressured by older kids to sneak out after curfew and hang out at Get Sporty, they discover that the store is haunted.
The quads are taught a lesson by Tom and Anne when they are forced to wait in line like everyone else when Isaiah Thomas comes to the store to sign his new shoes.
The quads worry that Britt has developed a "house crush" on Dawn, and have to figure out a way to get him to stop liking her before his secret is discovered and he is sent back to Australia.
Dawn and Mae get jobs to help pay for a trip to Paris, but their plans get complicated when the boys discover that they can use complaining at restaurants to their benefit.
When Nicky, Ricky, and Dawn discover that Britt has been hanging out with their friends without them, they start to question his motives.
After Mae gets accepted to a new boarding school, Dawn is desperate to make lasting memories with her best friend before she leaves; Nicky and Ricky secretly audition new best friends for Dawn.
