Saara's fear of heights puts her at risk of failing her swim test, but Dana and several dinosaurs help Saara conquer her fears. Dana is studying the hunting techniques of the Microraptor when she finds a mouse in the apartment. Rather than setting a trap, Dana convinces Mom to use dino skills to catch it instead.
Inspired by a trip to the aquarium, Dana and Saara hunt the biggest shark ever, the prehistoric Megalodon. When Saara doesn't pick Dana for her dodgeball team because of her small size, Dana applies survival techniques from the smallest dinosaur ever found to prove being small isn't always a bad thing.
When Uncle Ravi comes over for a curry cook-out Dana must protect Dad's special ingredient, a spicy mirchi pepper, from being eaten by hungry herbivores! Dana conducts Dino Experiment 618: What does it feel like to go as fast as a Compsognathus, the fastest dinosaur? With her Compsognathus skateboard she's ready to feel the speed, but first she must master the basics of skateboarding.
Smitten with Cai's new foster kitten, Dana tries to convince Cai to adopt the kitten while imaging what it would've been like for cave-people domesticating a Smilodon. When Grandma watches over Dana, Dana's disappointed because she and Dad planned to transform her bike into a Dromaeosaurus for Dino Experiment 612: How does a Psittacosaurus use its tail quills to protect itself.
Dana comes across a herd of traveling sauropods and learns about why and how they migrate. Using what she learns she helps Mr. Hendrickson's move into a new home a little easier. Dana and her family plan to have a picnic lunch, but find their picnic basket has been slashed. The family heads to Dino Court, to try "The Case of the Picnic Basket Slasher".
Ms. Currie asks Dana to help her choose a reptile that's most like a dinosaur to adopt for Trek's upcoming birthday. Together they scour the local Reptile Zoo and pet store for the perfect pet. Dana neglects to do her part to help take care of Nixon because she's too preoccupied with Dino Experiment 620: How do Edmontosaurus take care of their babies.
At Grandma's farm Dana conducts Dino Experiment 625: What does it feel like to ride a Hippodraco? With Grandma's guidance and Saara's love of horses, they help Dana learn what it feels like to ride a "Horse Dragon". Dana wants to stay up all night to do Dino Experiment 623: Are there nocturnal dinosaurs? But her Dad's just come back from a late hospital shift and wants to go to bed.
Dana uses her time at Grandma's farm to conduct Dino Experiment 615: Who would win in a fight? A Triceratops, Diabloceratops, or Kosmoceratops? Dana, Grandma and Saara all get invested and choose a dino to root for. Dana discovers the differences between dino and human babies a when Mom's friend Ashley and her new baby Ben stop by for a visit.
When Dana, Saara and Uncle Ravi go gokarting together, Dana learns helpful techniques from a nearby Stygimoloch to help as they race each other. Dana is doing Dino Experiment 624: Why does the baby Brachiosaurus eat so much? Meanwhile, Saara adeals with her very first face pimple, an early sign of growing up.
Dana's at the museum studying Mammoth fossils when she tells Dad and Saara a fantastical story about the cave people that lived among them. Dana and Saara are shoveling the driveway when Dana is distracted by a Troodon who has dug a den under her tree house. Dana wants to figure out why the Troodon dug the dens, but also promised to help Mom shovel the driveaway.
Dana accidentally lures a Smilodon into her house, but when mom tells her wiild animals aren't allowed inside Dana uses Nixon as bate to lure the Smilodon outside before Mom and Saara notice. Dana conducts Dino Experiment 608: How Do Dinosaurs Survive the Winter? With some holiday help from Ms. Currie and her grandsons, she discovers some surprising results.
It's the season opener of Season Three and the new baby is coming. While Mom and Dad are in the delivery room, Saara tries to keep Dana calm by asking her how different dinosaurs had their babies. While the girls go on a fantasy adventure back in time to answer that question, they get closer to the answer of another question - are they getting a baby brother or sister?
When Dana's dino backpack and field guide get stolen by a Titanis (a prehistoric "terror bird"), she enlists the help of a very special police officer who has her own connection to the Dino Field Guide./When Dana's Mom puts her Baby Brother down for a nap, she asks Dana to be quiet so they can both get some shut-eye but some noisy Corythosaurus are honking outside and Dana is determined to find out why.
While Dad is trying to get Dana and Riley to help him hang laundry, they would rather imagine that they're dino knights in a medieval jousting competition against dinosaurs./Rookie camper Dad takes Dana and Saara on a father-daughters camping trip and things don't go quite as planned when their firewood is stolen. Dana is pretty sure the thief is the Incisivosaurus, Mammoth or Maiasaura and decides to do a Dino Experiment to figure out which dinosaur (or prehistoric mammal) eats wood.
When Dana and Grandma are playing Cowboys and Dinosaurs, Saara doesn't want to play. Or does she?/Things get heated when Dana and Dad take on Saara and Uncle Ravi in a game of ball hockey. And to fuel her competitive fire, Dad tries to get Dana to think of the game like a Dinosaur Experiment, encouraging her to use dino strategies to defend the net - just like how a nearby Triceratops defends her nest against a trio of hungry carnivores.
When Dana has a special Father's Day craft egg destroyed by either the Titanoboa, Sinornithosaurus or Troodon, she and her neighbour Ms. Currie team-up as "police officers" to bring the dino to justice./With Dad busy at work, Dana tries to make a new backpack mode on her own so she can check out the teeth of what she thinks is the biggest raptor ever discovered: the Gigantoraptor.
On her daily visit to Mr. Hendrickson, Dana helps a Baby Pterodactylus who has fallen from her nest. Over the course of a few days, Dana learns that sometimes people and dinosaurs need a little push out of their comfort zones in order to succeed./Dana finds claw marks all over the yard and tries to figure out what could have made them. Mom and Dad take a walk down memory lane and help Dana realize that the claw marks came from two Troodon dancing together.
When Dana's soccer team is outclassed by Riley's team, Dana and Coach Grandma work together to devise dino strategies to try to score./Dana is trying to figure out how different dinos protect their eggs from hungry egg-eaters. Meanwhile Saara wants to prove to Dad that she can baby-sit Dana and Dexter, which means helping Dana with her Dino Experiment and carrying around an egg as a surrogate Dexter.
When Dana, Uncle Ravi and Uncle Ravi's girlfriend Anjali visit a supermarket together, Dana just wants to do a dino experiment but Uncle Ravi and Anjali are more concerned with impressing each other./Dana is trying to solve "Dino Experiment 724, why was the Europasaurus so small?" but her progress is complicated by the fact that Mom is forcing her to stay in her messy room until she cleans it up.
When Dana finds a lone Incisivosaurus left behind after some herbivore herds pass by her, she wonders why the dino isn't following its fellow plant-eaters. And while Dana helps Grandma and Saara make jars of tomato sauce for the winter, she becomes determined to figure out what the Incisivosaurus is up to. When Dana gets a cold, she's still determined to complete Dino Experiment 725 - were dinosaurs warm or cold-blooded, despite Ms. Currie's efforts to keep her inside and in bed.
When Dana encounters an unexpected intruder in her tree-fort, she uses the same techniques that a clever Sinornithosaurus uses to defend her nest from an invading Troodon./Dana is using the bathroom to figure out how the Megalodon hunted in the ocean because it's the only place she can get dark enough to use her shadow puppets. Unfortunately for Dana, everyone in her family needs the bathroom and interrupts her. But fortunately for her, they all help her along the way too.
While Dad makes baby food for Dexter, who is starting to eat solid foods, Dana is trying to figure out what mammoths use their trunks for./Dana is taking care of Cai's cat Sabre but he escapes Cai's apartment to chase a Baby Troodon. Now it's up to Dana to save the Baby Troodon from Sabre and get Sabre back into Cai's apartment.
While out for dinner with her family, Dana spots a strange winged creature that has characteristics of both dinosaurs AND Pterosaurs. But what is it?/Dana needs Dad's help to figure out if the Deinosuchus sleeps with one eye open but Dexter won't go to sleep and free Dad to help. Taking matters into her own hands, Dana puts on a puppet show for Dexter to help him sleep but the show takes on a life of its own.
Saara is having a sleep-over with her friend Olivia and Dana wants to join in. So she tries to frighten Saara and Olivia by telling three spooky dino tales that pay homage to famous horror movies - but has a hard time with her stories' scary endings.
In this two-part season opener, Dana, Saara and their Dad go on an undersea fantasy submarine adventure to figure out who was the apex predator of the prehistoric oceans -- the Megalodon or the Livyatan?
Dinoflies - Mom wants Dana to take a bath and Dana wants to study the Meganeura but can Dana do both? Winging It - Dad and Uncle Ravi get competitive trying to help Dana determine which prehistoric creature was the fastest.
Flying Expectations - Dana makes a new friend at the museum named Logan who believes that the Quetzalcoatlus couldn't fly but Dana thinks otherwise. Dino Talents - Dana tries to help a Baby Spinosaurus learn to hunt.
Danceasaurus - Riley has trouble fitting into Coach Powers' after-school dance program until Dana helps her out with a few tips she learns from observing an Incisivosaurus’s. Dino Memories - Dana uses egg-opening techniques from a clever Baby Troodon to try to get Mom's old chest open.
Dino In The Nest - When her new baby brother Dexter gets in the way of her dino experiment, Dana wishes he was a dinosaur - and gets her wish! Follow The Mammoth - When Dana visits Grandma's horse farm, she discovers a Mammoth herd that appears to only have females
Dino Feeder - When Dana tries to attract a squirrel to do Dino Experiment 8-1-8: "Which dinosaurs hunt small mammals?", she inadvertently injures a pigeon! Tyrannosaur Test - Dana finds a T-Rex, Albertosaurus and Nanuqsaurus outside and wants to do Dino Experiment 8-0-8, which Tyrannosaur was the best hunter?
Tail Power - While Saara and Olivia race toboggans, Dana uses her own T-Rex-ified toboggan to test which dinosaur had the strongest tail. Brontotherium And The Beast - Dana tries to help the Uncle Ravi by observing how a Male Brontotherium attracts a Female and then suggesting to Uncle Ravi to use the same wooing techniques.
Dino Deep Freeze - When the furnace gets broken, Dana investigates the different ways the Nanuqsaurus, Dromaeosaurus and Incisivosaurus stay warm. Dino Garden - When Dana visits Ms. Currie at the Botanical Gardens, she accidentally lets the Europasaurus, Dracorex and Hippodraco inside.
Problem Cub - Dana comes across a Baby Smilodon and tries to encourage her uncle and his girlfriend to adopt the Mom and Dad Smilodon’s parenting style. Dino Doodies - When Dana finds some unidentified dinosaur poop outside Grandma's barn, she's worried it belongs to a predator who is after Grandma's animals.
Prehistoric Hospital - Grandma is in the hospital with a hurt knee and Dana wants to help. Bugasaurus- Dad is trying to have a nap but a fly is in the apartment and driving him crazy. Dana investigates dino insect hunting techniques to help her Dad get the fly.
Dinosauroid - When Dana and Saara discover how Troodon could have evolved to become a human-like dinosaur called a “Dinosauroid”, the two sisters imagine a series of competitions to determine who was better: Humanoid or Dinosauroid. Dino Dana Says - While visiting the vet office where her Mom works, Dana investigates the possibility that dinosaurs mimicked each other, like some modern birds do.
Lovey Dovey Dino - When Uncle Ravi and Anjali move in together, it's clear that Anjali has a lot on her mind and Dana uses this opportunity to explore how Therizinosaurus get together with their mates. Best Nest - When Dana and Mom come home with a new crib for Dexter, some of the pieces get stolen by a Compsognathus, Microraptor and Archaeopteryx.
When Saara is worried that she's going to fail a science test on dinosaur names, Dana helps her learn the names through the power of song.