A problem-solving older sister, Bitz, and her younger brother, Bob, love making things, imaginary adventures and engineering. They explore their love of science, technology, engineering, art and math to invent ways to save the day.
Bob wants his castle to be like Bitz's, but things don't go to plan with Bevel in charge.
Bitz is desperate for famous chef Madame Gourmet to taste her yummy Bitz mix marmalade.
Bob's go-kart becomes a no-go-kart when it starts falling apart during a race.
A race across the desert slows to a crawl when Bitz and Purl overengineer their vehicle.
A climb up Mount Robo-Bob is interrupted by the appearance of abominable snow monsters.
Bitz and Bob have to rescue Purl from the clutches of Pirate Bevelbeard and his shipmates.
Princess Purl is going to sleep for a gazillion years unless Bitz can wake her up.
Bob is stuck in a runaway hot-air balloon and needs clear instructions to land it.
The opening of Purl's ice cream parlour is at risk when the ice cream doesn't arrive.
Bitz needs to stop the production of Little Bev Riding Hood turning into a disaster.
Bitz needs to make Bob's tightrope act not only brilliant, but also safe, how though?
Bitz needs to work out how they can pull Bevel from the snow without sinking themselves.
Bitz has to unfreeze Bob, Bevel and Purl and get a tiara back from two castle trolls.
Bitz needs to send two stranded aliens back to space in time for their granny's birthday.
Bob and Princess Purl are trapped on a runaway carriage and Bitz has to stop it, fast!
Princess Purl has one more task to complete, and quickly, if she is to remain a princess.
When Big Pop and Zip get stuck on a skyscraper, Bitz has to think fast to get them down.
When the gang get stranded on Faraway Island, Bitz must find a way to attract rescuers.
Bitz and Bob are excited about their hat-tastic fashion show until all the hats disappear!
When the curtain doesn't go up on the talent show, Bitz needs to work out how to raise it.
Bitz and Bob help famous artist La Purl move a very large, heavy rock across the beach.
Bitz, Bob and Purl need to help a tired Bevel get two cheeky bear cubs to take their nap.