Eleven-year old genius and kid-scientist Anne has invented and built her own amazing androids. Nick discovers Anne's secret junkyard laboratory and enlists the help of Shania to befriend Anne and her mechanical companions. Together they help solve Anne's scientific problems through real-life solutions.
Anne is working out the kinks with newly made Pal, while Nick, Shania and the other androids play Hide and Seek. When Nick accidentally activates a security program that makes Hand, Eyes and Pal go into super-hiding mode, the kids have to find the missing androids before Pal's circuits overload.
Anne, Shania and the androids help Nick build a lawn-mowing robot to help him with his chores. All the while, Nick's Mom keeps stopping by the junkyard to check on their progress, nearly discovering Pal each time she comes by!
Hand feels left out when Anne would prefer to use Pal to help with an experiment; she thinks Anne likes Pal better. Nick devises the Android Games to show Hand what she's good at but the plan backfires when Eyes and Pal unexpectedly shine in the games.
Shania wants to form a garage band with her brothers but they're not very interested (or very good). Meanwhile at the junkyard, Anne and Nick work on upgrades to the security system. When they put Shania in charge of android-sitting, she finds out they have hidden musical talents and together they create a Garbage Band.
Eyes discovers a butterfly in the junkyard and wants to learn to fly, so Anne, Nick and Shania experiment with different ways to help Eyes off the ground. After several attempts with wings and helicopter blades, they discover that helium balloons are the best solution. That is, until the balloons lift Eyes over the junkyard fence and into the neighbor's yard.
Anne has built a brand new observatory and invites Nick and Shania to a sleepover so they can witness the lunar eclipse. First, Nick needs to get permission from his Mom to spend the night at the junkyard. The kids decide that it's time for Nick's Mom to meet Anne's Dad.
Shania is stuck at home taking care of her little brother Garth while Anne and Nick build a rainbow maker with a prism. Unfortunately, while Anne and Nick are busy, the prism accidentally sails over the junkyard fence when Hand and Eyes are playing monkey in the middle with Pal. The prism ends up in Garth's sticky hands. Hand throws Pal over the fence to retrieve it and Shania's got to help Pal get the prism back before anyone discovers the android in the house.
Anne experiments with growing plants but her crafty robo-mouse eats her experiment. Nick, Anne and Shania devise ways to catch the robo-mouse while the androids discover a stray cat in the junkyard. Hand, Eyes and Pal hilariously try to apply what Anne says about plant-care to taking care of the cat. But once Anne shows them that animals have different needs than plants, they take better care of the cat and want to keep her. Nick realizes the cat is the perfect solution to Anne's plant problem but, unfortunately, the stray has already moved on. Now the question is, will the cat come back?
Anne has recreated Nikola Tesla's plasma ball for her summer school project. Before they can get Anne's plasma ball up and running, the power goes out in the junkyard. Anne decides to try alternative types of energy (sun, wind and people power) to generate electricity for her Plasma Ball. Meanwhile, thanks to Shania's fixation on a popular singer, Hand develops an interest in the electric company truck that comes to fix the power lines... can androids feel love too?
Nick's best friend Zack comes over for a sleepover when Anne is in the middle of an experiment on magnetism. Nick tries to convince her to let Zack come help, but Anne doesn't want anyone else to know about the androids. However, when Pal accidentally gets turned into a magnet, Zack gets drawn across the street into the junkyard due to his metal backpack. Luckily, Zack is pivotal in demagnetizing Pal and becomes the newest member of their junkyard crew.
When Hand acts out of control, Anne, Nick and Shania wonder if it's possible she's throwing temper tantrums or if she's been infected by a computer virus. As they try to figure it out, Hand acts increasingly dangerous and Anne's Dad tells them to shut Hand down. Finally, the kids discover Hand wasn't out of control but was being manipulated by Shania's family's new remote control toy! Now the only question is, how can they get Hand back to normal?
Anne is thrilled when a meteorite lands nearby because the space rock is the last one she needs for her extensive rock collection. Fortunately, Eyes was tracking it in the sky and knows exactly where it landed. Nick convinces Anne to let Eyes come on their space rock adventure but, little does he know, other amateur geologists and Nick's Reporter Mom are on the meteorite hunt too!
With school starting, Anne, Nick and Shania test a rocket messenger system so that they can stay in touch during the school day. They quickly realize that they need something smarter than a rocket to be able to carry messages. Using supplies around the junkyard, the kids turn an ordinary pigeon into a bionic flying delivery system.
It's the first day of school and Nick is nervous about making new friends. Luckily he meets a girl named Charlie who shares his love of science. Meanwhile, Pidgely is on his first "Harrier Pigeon" mission to deliver a message to Nick and Shania, but when he misses the designated time to meet up with them, he has to get resourceful.
Anne, Nick and Shania are babysitting Shania's little brothers when Pal discovers that Meow Cat has had kittens. Shania's super excited and takes one of the kittens away, but quickly learns this was a bad idea. When she tries to return the kitten, Meow Cat has moved and taken the other kittens with her. The kids have to find Meow Cat and return the kitten to its Momma before it's too late.
When Nick's Dad bails on a Father/Son Science Center Challenge at the last minute, Anne lets Nick borrow her Dad. While Nick and Anne's Dad do some male bonding as they try to figure out how to make the fastest mini-vehicle without wheels, Anne, Shania and Nick's Mom do some female bonding with a girls' day.
Anne gets an assignment from school that instructs her to "get closer to one of her dreams." She's not sure what it means, but Nick and Shania help her figure out that one of her dreams is to make contact with alien life. To help Anne get closer to that dream, they experiment with how to send one of the androids into space.
Nick's friend Zack builds a basketball-playing robot and enlists Anne's help to make it work. When Nick finds Zack and Anne working together at the junkyard, Nick is jealous and challenges the robot to a game of one-on-one.
After Shania brings her dog Cyrus to the junkyard for a DNA experiment, the dog gets lost, so the gang uses forensic investigative techniques to find him in the neighborhood.
When Nick has a recurring nightmare about dinosaurs, Anne and Shania help him get over it by figuring out how he can outsmart the dinosaurs in his dream by learning about lucid dreaming techniques.
Anne is planning a series of experiments with dry ice, but her plans are interrupted by an invitation to Charlie's birthday party. At the costume party, Anne is excited to find dry ice so she can finish her project. Meanwhile, Nick and Shania have to keep Charlie from finding out about Pal when Pal decides to tag along.
When Hand gets broken using a pulley system, Anne asks the others to look for a replacement part. While searching, Shania and Nick fall into a hatch. In order to get her friends out, Anne has to fix what was wrong with her pulley system in the first place.
The kids decide to make a sci-fi movie, but after Shania gets a bad mark on a project about volcanoes, Grandma threatens to ground her from the junkyard for a whole month. Anne and Nick discover a way to help Shania fix her grades and make a movie about it along the way.
A woman named Ada comes to the junkyard to buy something from Anne's Dad, and the two discover they share a passion for robots. Ada invites Anne to visit the lab where she works, and shows her a big world outside the junkyard.
When Nick's Dad cancels a winter getaway up North, Nick is upset. Anne and Shania try to make it up to Nick by building a machine that demonstrates the phases of matter to make snow and ice -- so that the kids and androids can have a winter celebration at the junkyard.
Shania thinks everything is the worst right now. Nick is not allowed back in the junkyard as per his mom's new rules, Anne's not answering her walky-talky, and the junkyard has newly upgraded security.
Nick's still not allowed back in the junkyard, so Anne and her Dad invite Nick's mum to see that the androids aren't dangerous. To keep everybody safe, Anne gives the androids rules they must follow.
While Anne and Shania work on Pidgely's new exo-suit complete with intruder extraction mode, Pal dresses up as a real kid and learns that there are differences between androids and human children.
Anne visits Ada at Magnus Tech where she meets Magnus 22 (Ada's artificially intelligent computer) and Cleaner X1956, a cleaner robot Ada wants to retire. Meanwhile, Shania plays tag with the androids at the junkyard.
It's Art Day! Shania wants to welcome Art by doing a day of art lessons when Anne would prefer focusing on camouflaging the junkyard for added security.
When Nick's mum can't drive Nick and Shania to school, Anne and her dad drive them. Since Pal still wants to be a real kid, Pal sneaks to school in the trunk of Dad's Sweatster.
Shania and Charlie are watching the junkyard at night while Anne and her dad go to a late night tech swap. Even though he's not allowed in the junkyard, Nick sees three teens breaking into the junkyard and goes over to help.
Anne needs to upgrade the security systems at the junkyard. She, Zack and Shania work on making a junkyard dog for android protection. Meanwhile, Nick goes to work with his mom and learns how real animals protect themselves.
To make amends with Nick's Mom, Anne and Nick work on fixing her car while she runs errands with Anne's Dad while Shania trains Fangs.
When Anne, Nick and Shania find a robobug spying on the junkyard, it's a race against time to capture the bug so the androids' memories aren't lost forever.
Determined to find out who sent the robo-bug to the junkyard, Anne analyzes the bug's computer code. The results lead Anne, Nick and Shania to three separate destinations, ultimately sending them in the most surprising direction of all.
Grandma's knee is bothering her and, thanks to Shania and her brothers, the house becomes a disaster zone. With a visit from a social worker on the horizon, Anne and Nick decide to build Grandma a bionic knee brace.
When the kids realize it's their one year anniversary of being friends, they decide to throw a party to celebrate. But, Ada shows up with a surprise gift for Anne that has one mission: to get Pal to Magnus Tech.
Anne, Nick and Shania have to go to Magnus Tech in order to fix Pal. Luckily, Art can still get them access and they find a surprising ally in Magnus 22.
When Eyes's curiosity causes him to fall into Anne's water reservoir, Nick and Shania are shocked to find that Eyes has short circuited... and that Anne can't swim. They attempt to teach Anne while encouraging her to waterproof the androids so they can experiencing swimming, too.
When Garth gets bullied, Anne steps in to help, but gets her digital lab notebook stolen in the process. It's up to Anne, Nick and Shania to get Anne's digital lab notebook back from the bullies' tree house fort.
Shania and her family are moving in with Mr. Cooper, but Shania isn't happy about it. When Shania's brother Garth goes missing, the kids use Mr. Cooper's tracking techniques to track Garth back to a familiar place.
When Pal starts having nightmares about Magnus Tech, Anne is surprised Pal has developed the ability to dream. Anne and her Dad try to get Pal over Pal's nightmares but they soon realize Pal's not dreaming at all.
Grandma suggests Shania go with Mr. Cooper on a week-long survival trek so that they can bond. Anne and Nick join the adventure, but things go awry when the kids get separated from Mr. Cooper and have to survive the wild on their own.
Separated from Mr. Cooper, the kids must work together to find their way through the wilderness. Separated from the androids, they must rely on each other for support.
Anne, Nick and Shania discover that Ada has deleted Magnus 22 but they figure out there's a backup of its programming at her house. They go undercover at her son Dylan's party to save Magnus 22 and bring it back to the junkyard.
When uploading Magnus 22 blows the junkyard's power grid, the junkyard is left without power or security. Anne, Nick, Shania and Anne's Dad have to figure out another way to power the junkyard or the androids will be defenseless. As a cold night looms, Anne and her Dad sleep over at Nick's house.
It's time for the Weld Zone Father/Son Mini-Vehicle Challenge again and, like last year, Nick is planning to participate with Anne's Dad. But, surprise. Nick's Dad shows up at the last minute to compete with Nick. Wilbert steps aside but Nick still ends up needing him when his Dad is less than helpful.
It's Shania's birthday and Anne is making her a cake from scratch. Nick's Mom gets a job offer on the other side of the country and Nick has to decide whether or not he wants to make the move while Shania is up for a part in a movie.
Anne and Nick start working on Anne's Mom's designs. Pal notices some changes in Nick and Pal wants to change too. Meanwhile, Nick's Mom tracks Anne's Mom and it brings her dangerously close to Ada.
Anne, Nick, Shania and the androids must defend themselves against Ada and her evil Pal 2.0s. Anne receives an unexpected (and holographic) message and must decide whether or not she wants to share the androids with the world.
