The hamsters go on an adventure to the Place of All Foods to get more of their favourite treat; the hamsters think Harry's dad's phone is telling them what to do.
The hamsters think Harry is being held captive in his treehouse and vow to save him. Clover gets a taste of luxury in Bernie's doll house and doesn't want to go back to the cage.
The hamsters overhear dad role-playing as a dastardly knight and believe he has turned evil. Mondo must choose between superhero life and saving his best friend at Harry's magic show.
When the family gets locked outside, Popcorn leads the hamsters on a mission to rescue them. Lil Pal discovers she can imitate Flea Beast's bark but is unaware of the danger it causes.
Popcorn loses his crown in Keesha's aquarium and the hamsters dive in to retrieve it. When the hamsters go to a local hamster pageant, Clover has to unexpectedly compete.
The hamsters must stop Kendrick's old recliner from being thrown out. When a mama bird thinks Lil Pal is her lost chick, the hamsters rescue their friend.
When trick-or-treaters steal the royal treasure (candy), the hamsters must get it back. The hamsters and squirrels think they are being haunted by a nugget-stealing ghost. (Halloween special)
The hamsters venture into Harry's homemade volcano looking for the island of Num-Nuggtets, and end up at the science fair. The Hamsters believe King Harry has been magically turned into a potato and vow to turn him back to normal at any cost.
Greg pretends to be injured to avoid having to do a scary trick for his friends. During a game of hide and seek, Lil Pal hides so well she can't be found.
The hamsters are convinced that Harry's royal-themed birthday party is a front for a full-on Hamsterdale invasion. When Lil Pal's favorite toy falls into the A/C vent, Mondo embarks on a journey to retrieve it.
The hamsters try to compete with popular animal videos online and end up going viral. // Mondo must choose between his new superpower (causing thunderstorms) and his friend.