After the events of the team's kitten rescue; Leo along with his mother and his aunts of the PAW Patrol went on another mission.
This mission involves a train that was on the way to Adventure Bay and Katie and her pet cat Cali are on it; however the train got stopped by a rockslide and it gets worse when a boulder damage one of the wooden supports of the bridge the train was on.
Luckily; Ryder along with Casey, Roxy, and Ruby managed to respond to Katie's call and they all swiftly went to clear the rockslide and repair the bridge.
The team even rescued Cali when she tried to steal food from a seagull on the top of the train car's roof.
Today; the entire PAW Patrol are at the Lookout as Leo is with his mother Skye at the top of the Lookout playing Pup Pup Boogie as Ryder watched them playing the game.
Just then Casey arrives in the elevator.
Casey ask whether if the new Pup Pup Boogie game has arrived but Skye told her that it's now here yet.
"Me and Leo are playing the old Pup Pup Boogie," Skye began. "Would you like to join us?" She ask.
Leo nodded his head reply he got off the game pad and said, "Here Aunt Casey. You can have mine."
Casey smiled, "Thanks sweetie." She said while gently rubbing her nephew's hair as the boy giggled.
Casey then tries to practice playing Pup Pup Boogie but she couldn't get the hang of it until Skye offered her to teach the female German Shepherd on how to play the game; Casey accepted the offer and soon the two of them began to dance to the music.
The female German Shepherd got the hang of it as she and Skye soon began to dance to the Pup Pup Boogie game.
Leo smiled as he and Ryder watched until the boy started to dance along with his mother and aunt, then all three of them performed a tail spin while Leo uses his hand for balance.
All three of them spun so much until they collided with each other, "Oops! Sorry Mom, sorry Aunt Casey." Leo apologized.
"It's okay Leo." Casey spoke.
"At least you got the hang of the tail spin move perfectly like us." Skye added while giving her son a hug.
"Whew, I need a water break." Casey panted, feeling tired out from all the dancing.
"Me too." Leo agree.
Soon; outside the Lookout. Skye, Casey, and Leo are having a water break as Leo drank his glass of water.
"That was fun." Leo said.
"It sure was sweetie." Skye replied as she gave her son a kiss.
Mary and Ruby turned up as the female Dalmatian began to Pup Pup Boogie as she tried to do a tail spin but fail, Leo helps his Aunt Mary get back and teaches her how to master the tail spin move.
After helping the female Dalmatian into teaching the tail spin move, Leo is now playing with his mother and his Aunt Casey outside the Lookout.
"Mom, I want to show you something." Leo said and he rushed back to his mother's Puphouse and brings out a drawing.
He passes to Skye who looks at it and gasp, the drawing was actually a handmade family portrait with her, Casey, Ruby, Roxy, Mary, Zuri, Ryder and her son Leo all drawn in a peaceful meadow landscape.
"Leo, you made this?" Skye asked and Leo nods his head in reply.
"Do you like it Mom?" Leo asked his mother who instantly gave him a motherly hug.
"I love it sweetie." Skye said and both she and Leo hug each other dearly.
The other Pups saw this and smiled and they too joined in the hug while Ryder who is still at the top of the Lookout saw everything and immediately took a picture of the moment with his Pup-Pad; just then Ryder receives a call from Mayor Goodway.
Mayor Goodway tells Ryder that a train car from one of the trains that passed through Adventure Bay had derailed at the crossing and the worst part is that the tracks are damaged after the train car derailed and a special delivery is on the way to Adventure Bay; the special delivery is the new Pup Pup Boogie game.
Ryder called the PAW Patrol to the Lookout as the Pups including Leo all head up topside to get changed into their uniforms, the elevator takes them up to the top floor and all of them got out and lined up.
"PAW Patrol ready for action Ryder sir." Casey declared.
Ryder then tells the Pups and Leo about the mission and they are all shocked, the teen boy then selects Casey and Ruby for this mission and soon the team deploys.
Leo stayed behind with his mother and the rest of his aunts as Ryder, Casey, and Ruby rode on their vehicles and left the Lookout.
The boy decided to go and give his Go-Kart a good maintenance check.
While doing so, he even gave his new Pup-Pack's a maintenance check as well.
After he was done, he then reverts his Go-Kart back into it's toy form and safely keeps it in he and his mother's Puphouse, while putting his Pup-Pack in the Lookout.
Leo then went to play with his mother and the rest of his aunts.
The team manages to fix the tracks despite Ruby having an injured paw but Casey managed to get the hang of driving Ruby's bulldozer and clear the broken tracks.
The train finally arrives in Adventure Bay with the new Pup Pup Boogie game and the Pups, Leo, Ryder and Mayor Goodway all test it out at the Lookout.
Leo happily watched his mother and his Aunt Casey playing the new Pup Pup Boogie game until Mary couldn't help but perform a tail spin move and 'accidentally' crashed into Mayor Goodway.