David suffers a nightmare until the others decided to help him along with the kids and the Dream Machine inside David's dream. Will the kids saved David from his nightmare?

When a hotel for celebrities gets out of commission, David decides to turn his castle into a temporary hotel for them with the gang dressed like Waiters and French maids. Will the hotel be a success for the gang?

Big Jet uses a Head Switcher Machine to switch the heads of the gang into different bodies, David with Leo's, Quincy with David's, Leo with Quincy's, Annie with June's and June with Annie's. Will the gang get their bodies back?

During a stormy day the gang decides to go to David's Castle for a little fun and he decides to read some Fairy Tales to the gang to keep them happy. How will the stories be like for the gang?

The gang volunteers for a Career Day festival and they team up with a special adult partner to see how it's like to have a career. Will the gang have a great time with their careers?

Dora decides for the gang and her to have a Relay Race to see who is the best team, David and June vs. Annie and Quincy vs. Leo and Dora. Which team will win the Relay Race?

David and the gang must travel and save the Mount Kea Volcano from Red Hawk whose planning the reactivated it and make it destroy the island and the city of Hilo. Will the gang save Hilo, Hawaii from being melted by running lava?

Tired of being small, Annie accidentally uses David's Height Enhancer to turn into a Giant 30ft girl until Purple Pest steals the height enhancer and causes problems for our little er.. BIG friend Annie. Will Annie ever be back to normal size?

David gets a message saying that a friend of his Father's is getting Married until He discovers a new enemy Pink Sparrow, who kidnaps the Bride. The gang must rescue the Bride from Pink Sparrow. Will the Bride be rescued in time for the Wedding?

Big Jet uses a Bad Baton to split 12 Notes from the Musical Roller Coaster, all over the world. David decides to team up with Leo to help him retrieve the missing notes. Will David and Leo return to missing notes?

David creates the Speedy Sneakers to make go super fast until Yellow Rat plans to steal them for himself and plants a Speed Bomb on him. Will the gang help David from Yellow Rat?

David brings out Dora the Explorer for a special Salsa Dancing contest until they discover that Leo can't dance, David and June decided to help him get his dance groove going. Can David and June help Leo learn how to dance?

David and June volunteer to be in a RIVERDANCE show with Special guest Michael Flatley and Jean Butler, Until Purple Pest desides to cause trouble for the dancers. Will David and June succedd in the RIVERDANCE?

David as a Pharaoh and the gang travel to a mysterious Pyramid in Egypt where a treasure is hidden inside, But the Pyramid contains Traps, A Giant Spider and a Mummy. Will David and gang find the treasure?

Big Jet and his flunkies get their revenge by Kidnapping David and forcing June to rescue him on her own as a Spy agent without the gang getting involved in the mission. Will June rescue David from Big Jet and his Flunkies?

One day while playing in Leo's yard, An F.B.I. Agent comes by searching for David who was also known as The Missing Orphan Boy and takes June with him to search for David. What is the F.B.I. Agent's real plan for David?

While dancing in her backyard, June's belt rips and travels to David's castle to Borrow his newest gadget: The Copycat Belt. But she puts it on but it gets stuck on her and starts copying David automatically. Will June ever get that belt off?

The gang wants the learn how the human body works, so June secretly volunteers David for the body to enter. Rocket and the gang uses the Big and small machine to shrink themselves and travel inside him. What will the gang find inside David?

The gang becomes Medieval characters in a Renaissance until The Big Jet Dragon causes problems by settings fires all over the fair. Will the gang save the fair from The Big Jet Dragon?

The boys play as The Three Musketeers until they heard that Red Hawk, Purple Pest and Yellow Rat plans to invade the kingdom and attack the citizens. Will the Musketeers stop the flunkies and saved the kingdom?

The boys volunteer for The Elvis Presley Charity Event in Graceland until Red Hawk decides to go on a rampage and also learn about the life of Elvis Presley. Will the boys stop Red Hawk from ruining the Elvis Event?

After Conquering June's Bet, David made a deal that he and June would have a Mission at night with David's newest gadget: The Adultimizer to turn themselves into Adults and travel the world at Night. What will David and June discover?

June and the gang decided to test David If he's worthy enough to be a Little Einstein, June makes a bet that David will not use ANY gadgets for one mission or he leaves the group...forever. Will David stay a member of the Little Einsteins?

David and June entered a Virtual World called the Gamerzone where you can use anything or anyone from all video games until they get trapped in the game. Will David and June ever escape the game?

Big Jet uses his newest gadget: The Sonic Stealer to steal Annie's Voice away the gang teams up with David to rescue Annie's voice. Will Annie ever get her voice back?