Ada Twist, Scientist Season 4 Episode release dates & where to watch

1. Benny Who

When a new family moves to town, the team meets Benny, a sci-fi loving kid who misses his old life and wants to find a way to get back home

2. My Messy Valentine

Rosie built a special Valentine's Day catapult called "The Love Launcher," but it isn't working the way she'd hoped. Time to get organized and fix it!

3. The Green Team

Ada and the gang take Arthur on an out-of-this-world adventure to convince him that caring about Earth is cool — and really important!

4. The Right Puff

It's science to the rescue when Ada has a hair emergency on the day of Grandma and Pop-Pop's golden anniversary. Can she get her signature curls back?

5. Monster Mash

While playing Goblins & Dragons with Arthur, Benny accidentally breaks a rare figurine, sending the kids on a science-fueled side quest to replace it.

6. Soakchella

When the town's annual water battle is canceled due to drought, the Green Team works together to find a more sustainable way to have fun.

7. Mixtape Remix

Benny's planning a special gift for his dad's birthday that involves a mixtape, magnets — and bringing his mom's amazing music back to life.

8. Rodeo Rosie

To win the Silver Saddle trophy, Rosie must balance on a bucking bull for 8 whole seconds — just like her mom and Great Aunt Rose. Can physics help?

9. Dad to the Bone

The grown-ups are making a racket while practicing for the Last Band Standing competition. Can the kids solve the problem with science?

10. X Marks the Spot

The friends hunt for treasure inside a dark cave, where their pal Pepper teaches them about echolocation — and shows them there's another way to "see."

11. Blue River Wedding

When a tornado touches down on the day of Sensei Dave and Jiu Jitsu Joe's wedding, the gang must think up a way for all of the guests to safely gather.

12. A Twist in Time

Ada goes looking for a wormhole so she can travel back in time and fix an embarrassing mistake. But what if she never finds one?

13. Old Mr. Oak

The Green Team stands up for a beloved oak tree when Principal Rahul announces plans to chop it down to make room for a brand-new swing set.

14. You Got Served

Ada and the team serve up smart ideas to help Arthur tackle a tough tennis opponent. But the biggest win of all? Convincing him to keep an open mind!

15. The Garbage Gobbler

While investigating a "monster" at the creek, the kids discover something even scarier: tons of yucky trash! Can they build a machine to clean it all up?

16. Planet Hunters

NASA thinks there might be a ninth planet on the edge of our solar system, and Ada and her friends are determined to help them find it!

17. Iggy's Memory Palace

Iggy promised Bee-Bee he'd build her a tea party palace for a playdate with new friends. But there's a problem: He can't remember where his plans are!

18. Dinnertime Deadline

The Science Scouts pitch in to help Mom Twist make pizzas for the Community Kitchen. But when the power goes out, how will they feed folks in need?

19. Getting It Write

A high-tech AI bot built to help Ada craft the perfect story for a kids writing contest can't compete with human creativity... or can it?

20. More Scientists

Meet real-life scientists who know their stuff, from a contraptionist who builds sturdy bridges to a zoo archaeologist who studies animals from the past.

21. Even More Scientists

From a skate park designer to a pastry chef, these real-life heroes with super-cool jobs put science to work every day!