AJ is an 8-year-old techie who drives monster-truck Blaze, the top racer in Axle City. The two go on adventures that have them taking on problems involving science and math. Many predicaments they face are caused by Blaze's rival, Crusher, a tractor-trailer that will do anything to beat other vehicles to the finish line. The animated series is billed as the first TV show for preschoolers to comprehensively cover areas of science, technology, engineering and math. Each episode introduces different STEM concepts, including buoyancy and trajectory.
Episodes
When Zeg floats away on a kite, Blaze must team up with Zeg's three sisters to rescue him; Meg, Peg and Egg must save Zeg.
Blaze is racing in the Pit Stop Power Race with the viewer, AJ and Gabby as his pit crew, but Crusher is also in the race and with his Pickle Pit Crew, he's determined to win. Will Blaze win the race, or will Crusher pit-stop Blaze? During the race, Pickle fixes Crusher into making different parts.
It's race day in Axle City, but Crusher has stolen Gabby's Weather Machine and is using it to cheat up a storm. Blaze, AJ and Gabby will need your help to weather Crusher's cheats to win the race and get Gabby's machine back. During the race, Pickle is a meteorologist for the race and gives weather catchphrases a lot of puns.
Darington can't wait to ride the Great Rocketship Ride, the tallest, fastest carnival ride in all of Axle City. But when his tickets blow away due to the jack-in-the-box popping up, he, Blaze and AJ need your help on an epic adventure to retrieve them. Meanwhile, back at the carnival, Pickle lets Crusher take his turn and Crusher ends up going on rides that have different things.
It's nighttime in Axle City and the viewer, Blaze and AJ stumble upon the race of their dreams, the Great Bedtime Race in Bedtime Land, but Crusher is also in the race and he won't rest until he wins. During the race, Pickle is sleeping and follows Crusher. Crusher asks Pickle what's he doing while sleeping but strange things end up coming into his dreams.
The viewer, AJ, and Ice Cream Truck Blaze must help out in three big ice cream emergencies by having Blaze transform into three ice cream vehicles, an Ice Cream Helicopter, an Ice Cream Submarine and an Ice Cream Rocketship. Meanwhile, Pickle is at his Ice Cream Shop and gives Crusher 10 karate cookie dough.
At the board game store, Blaze, AJ, Crusher and Pickle are magically transported into an enchanted board game called The Dragon Game; the four friends must use the help of the viewers to overcome the game's dragon-themed challenges to win.
Time for a monster machine movie party at the movie theater; the viewer, AJ, Blaze, his little sister Sparkle, and their parents watch three movies, a superhero movie, an astronaut movie and a detective movie, to earn a special surprise reward. Meanwhile, Pickle tries to tell Crusher not to use his phone while watching the three movies, but he doesn't listen causing Crusher to have food on him as punishment.
Blaze and AJ are at the beach when they meet an adorable new friend, Shelly the sea turtle; when Shelly cannot find her way home to the Seaweed Forest, Blaze turns into a Sea Turtle Submarine to help lead the way with the viewer's help. Meanwhile, Crusher and Pickle are swimming underwater, Pickle does a documentary, but Crusher can't find any sea creatures, but he gets absorbed by food fish.
When all of Blaze's Monster Machines friends end up in messy trouble, the viewer, AJ, and Blaze must save them by having Blaze transform into the soapiest, sudsiest cleaning machine of all time, Clean Machine Blaze. As Crusher watches Blaze and AJ go, he goes in Pickle's turbo tub and gives him different objects.
Blaze becomes a high-speed train for The Great Train Race; he and AJ must use the viewer's help to win the Golden Train Trophy against Crusher, who as always is determined to cheat and knock him off track.
In their final miniseries episode, it is breakfast time and Pickle has robots to help him whip up a great meal, the Breakfast Bots; when Crusher makes them grow too big due to pressing the green button on Pickle's remote control, they start blasting giant breakfast foods everywhere; Robot Blaze and AJ need your help to stop the bots to save the city.
In their final race and 22-minute episode, Crusher uses Gabby's Far, Far Away Machine to send Stripes, Darington, and Watts far away from the race at the Monster Dome; Blaze, AJ, and Gabby need your help to rescue their friends from the Ice Age, Ancient Egypt and Medieval Times.
In their final ever episode, Santa's reindeer team - Comet, Dancer, Cupid, and Twinkle - get swept away in a Christmas Eve snowstorm and Blaze and AJ need your help to use the power of Santa's magic hat to rescue them.
