It's Christmas time, and when the twins argue about saving money versus spending it, Grandma introduces them to a board game that unleashes creatures and chaos into the Tuttle's home. 

Invaders from another world kidnap Derek, launching Grandma and the twins on a dangerous rescue mission. On a dark planet, the twins encounter mysterious clues, cyborgs and spy gadgets as they solve the mystery of why capitalism is failing.

After Emily fails a test, the twins wonder whether school is the best way to learn--prompting Grandma to whisk them off to a familiar place in the past, before stopping by the most famous mind in history, and then a rumble in the jungle...

LUCHA! After a failed kids club fundraiser, the gang runs into William Bradford, the pilgrims, and Karl Marx as they wrestle with socialism and its consequences.

When the Twins' business is hurt by a subsidy, they visit Ludwig Von Mises and crash-land in a Spooky land where they learn just how stinky the market can get.

SPLASH! When the school district's "Cookies for Bookies" program creates wacky problems, Grandma introduces Ethan and Emily to economist Frederich Hayek, and takes them under the sea for a mermaid "Shellebration"!

When the twins are unfairly cut from a talent show, Grandma takes them to meet Frederick Douglass and an itsy bitsy spider to learn how to conquer victim mentality.

After a T-rex destroys their treehouse, the twins struggle to save Rapunzel's cramped kingdom and discover that good ideas can come from imperfect people.

After their softball team starts bending the rules, the twins jump through famous paintings, meet George Washington, and try to save a divided farm from a big bad wolf and dangerous tribalism!

Holy Satoshi! When the twins are forced to choose between accepting dollars and bitcoin at a garage sale, they travel through the internet and a retro video game to learn what makes money well…good.

When the twins hit the jackpot with a trash can cleaning business, Karinne makes them question if success is selfish. They learn about true entrepreneurship from Joyce Chen and the grumpy Grumbledons of Grumbletown!

When a field trip goes wrong, the twins question if needs are actually rights. They learn about natural rights from John Locke and fight for their lives on an island of ferocious flamingos.