When Polly tries to test the limits of her powers, she accidentally shrinks her house and its inhabitants to nano-size. She and the girls have to get everyone back to normal before anyone realizes what's going on.
In her attempt to spend more time with Lila, Polly tries to join Lila at kerpow class. When it's time for the levelling-up demo, Polly rigs the "kerpow bot" to be easier for her, but accidentally sets it to destroy.
It's a summer heatwave and Polly's attempt to cool off ends up freezing her whole house -- and her family. She has to keep them frozen until Shani finds a way to scientifically thaw them without disastrous consequences.
When Polly discovers a fly who only lives for 24 hours, she sets out to make its short life amazing. But when all the things that Polly loves fail to interest the fly, Polly learns the fly has a totally different idea of "amazing."
When Grandma and the girls check into the "pocket floor" of a fancy hotel, everything is set for luxurious relaxation -- until a mouse steals Polly's locket. It's a wild chase through the hotel to get the locket back.
Polly takes on the snooty Augustus Uberrich in a tiny boat race across Cosmo Park Lake. But when Augustus cheats with his tricked-out boat, Polly learns that winning isn't everything.
At the local amusement park's carnival games section, Polly sees that her long-lost plush monkey is one of the prizes. But when Polly discovers the games are rigged, Polly and pals go on a pocket-sized adventure to find the culprit.
Polly wants to be the Queen of Halloween, but her tiny party turns into a big disaster when she tries to make it fit Nic's scary preference instead of following her own heart.