Hawkodile is the toughest action hero in the land, until his old rival shows up to take vengeance on him. Defeated and in need of help, Hawkodile must train Unikitty and the others into super muscle?y tough bros. And there’s only one place unstoppable warriors are made, the Action Forest.

Unikitty comes to the conclusion that everyone would be a lot happier if they would just think the way she does, and with Dr. Fox's help, maybe they can.

Unikitty and Puppycorn just want to veg out on Lazy Sunday, but it is also Chore Day, and Richard keeps trying to force chores on them. They try to escape him by being lazy pirates, and set sail using the couch as a pirate ship to rescue Dr. Fox and Hawkodile from chores, but when they enter Unikitty's room, which is a big mess, Richard uses this as an advantage to get them to do chores by joining the pirate idea and shoot cleaning supplies at them.

After Hawkodile gets caught by two members of the Action Police for battling a giant monster without an action license, Unikitty and her friends try to help Hawkodile get rid of his action urges. If Hawkodile does not keep his urges under control, he will lose his shades. There is only one way to earn his action license: take the action test at "The Department of Mayhem and Violence". With Unikitty's help, he may be able to get it even when the Action Police plan to make sure he doesn't pass.

When Unikitty and the gang discover a gross bug in the castle, they desperately want it gone for good - but Unikitty refuses to allow them to squish it, no matter how icky or dangerous looking it is.

After buying a skateboard, Puppycorn is determined to impress his skater friends with a stunt, but he fails. Soon Dr. Fox creates a plan to create cloaks to aid Puppycorn in his second try at a stunt, but when he succeeds at impressing his friends, he gets himself into trouble when he is entered into the Skater Stunt Games, the most dangerous skate obstacle course.

Hawkodile tells Unikitty about a Bodyguard Boat he is building and decides they should use it to test his survival skills and show that he is prepared for anything. When they get lost out at sea, Unikitty's ideas seem to work while Hawkodile realizes maybe he is not prepared for anything.

When Unikitty finds out Richard has the most tastiest ice cream planned, she gets excited. However when Richard says they will not get the dessert until after the dinner he is cooking, Unikitty sets up a heist with Dr. Fox, Hawkodile, and Puppycorn to secretly retrieve the dessert without Richard knowing.

Dr. Fox is proud to unveil her new ultimate combat machine and take it into an underground scientist fighting ring. But Hawkodile is jealous of the fighting bot and declares he can beat anything it can, so he dons a robot costume to enter the ring, planning to defeat Dr. Fox's robot to prove he's the better fighter.

Unikitty and the gang gear up for a fun day at the beach, but Master Frown uses his position as lifeguard-in-training to spoil their plans. They embark on a beach quest to find the legendary Perfect Spot, far away from Frown's tyrannical rule. Though Master Frown and Brock are not far behind.

After Richard puts on an amateur magic show, Dr. Fox becomes obsessed figuring out how his science-defying tricks are done, but she goes a bit too far and upsets him after spoiling his magic tricks. After a giant bunny monster creates in the lab, Richard will have to use his tricks to stop it.

An upcoming dance party is coming to the Unikingdom and everyone is excited to show off their moves, except Richard, who believes he has no groove. Unikitty decides to help, but nothing works, soon Dr. Fox decides to help him by showing off her newest invention: Grooveatron, a robot that will let Richard do some dance moves, but soon the robot gets a mind of its own and the gang have to defeat it in a dance-off.

The landlord has threatened Master Frown and Brock with eviction unless they fix their apartment. Brock invites Unikitty and the gang to help. Instead of doing what the guys want to their place, she proceeds to do what she wants.

After their spaceship explodes, Unikitty and the gang float helplessly through space. As they try to formulate a plan that will get them home safe, they flash back to how each of them is responsible for their ship being destroyed.

The gang are at the local laundromat cleaning their clothes, when Unikitty finds Batman's uniform mixed in with her clothes. Intoxicated by the coolness of it, Unikitty takes on the persona of Batman and begins to fight crime. When she accidentally causes Master Frown to step up his crime game, she will need the help of her friends, dressed as Robin, to stop him.

It's now summertime which gives the gang a chance to have fun in the pool. But Puppycorn is afraid of the deep end, so Unikitty and the rest try to help him and show him how cool the deep end is, but Master Frown is destined to make things worse to increase Puppycorn's fright.

Richard finds the opportunity to take the others on a road trip, but soon the road trip turns haywire with bathroom breaks, stops to fix the tires and the van itself, interdimensional space/time travel, crumbs, road rage worriness, and an "evil truck" (in a reference to Duel).

Unikitty and Frown decide to have the first ever Election Day in the Unikingdom to see who would rule the kingdom as Princess. This eventually leads to a heated competition when Master Frown pretends to be nice and gives free things away in order to win the hearts of the citizens, while Unikitty tries to win her way, much to the disappointment of the citizens.

Unikitty and the gang (including Brock) decide to challenge themselves to stay up all night in order to meet the Sandman. After a night of activities, they start to notice that everything is not what it seems.

When Puppycorn's toy dump truck goes "missing", Unikitty and Hawkodile turn into buddy cops and track it down, car hood sliding, stunt driving and delivering cool one liners along the way to crack the case while Richard is forced to be The Chief (even though he doesn't want to be).

When they think nature is gross and dangerous, Unikitty takes Dr. Fox, Rick, and Puppycorn through the woods to prove that it's not all that gross, while Hawkodile stays back and defends the van from creepy raccoons.

After destroying a group of chipmunks' tree, Hawkodile takes them under his care to train them into unstoppable fighting machines as Hawk's sensei trained him to be, but Unikitty believes this is wrong seeing as how the chipmunks are just kids.

On Valentine's Day, Hawkodile is planning to get Dr. Fox to be his valentine, but there's never a perfect moment to confess his love, so Unikitty and her friends are destined to help him find the perfect moment to confess to her.

When everyone starts experiencing dangerously low boredom levels, Dr. Fox introduces her new invention: the P.L.O.T. Device, which can make anything exciting happen, but it starts getting out of control when it's used too much.

On Taco Tuesday, Unikitty and her friends are making the best tacos ever, but mysterious beeping fills the castle, giving the gang stress. Unikitty explains they're Bad Vibe Detectors that detect sadness and try to figure out who's sad, when they discover no one's sad, Unikitty takes them into therapy to test if they're upset.

At the Zoo, Master Frown pranks the gang, which prompts them to devise plans to prank him back. Unikitty wants to prank too, but doesn't seem to understand the concept of a prank when she believes they are too mean, pranking Master Frown nicely instead of in mean ways, which worries the rest of the gang.