Penn Zero's Adventures of Toy Story is an upocoming crossover by TBA.
The film begins with a six-year-old boy named Andy Davis playing with his toys, such as a Mr. Potato Head toy, a plastic dinosaur toy named Rex, and his favorite toy, Woody, a cowboy doll. He takes Woody into the living room and plays with him some more, with a short interruption talking to his mom about his birthday party later that day and the upcoming move to a new house. After playing with Woody, Andy starts helping his mother by carrying his baby sister Molly to her. While he's away, all of the toys come to life.
The party makes all the toys extremely nervous, wondering if Andy will get a toy that will replace them. Woody sends the small green soldiers led by Sarge downstairs to spy on the party. At the end of the party, Ms. Davis pulls out a surprise gift from behind her, which turns out to be a Buzz Lightyear action figure in spaceship packaging. Andy and his friends run upstairs to open him and in his hurry Andy knocks Woody off the bed. They quickly leave, and the other toys welcome the newcomer. Buzz however doesn't seem to be aware that he is a piece of plastic, believing himself to be the actual Buzz Lightyear on a mission to save the universe from Evil Emperor Zurg. The other toys take to him immediately, being impressed by his many features. Only Woody is unconvinced, showing jealousy towards Buzz, who might replace him as Andy's favorite toy. As time passes, Andy replaces many of his cowboy themed room decorations with space ones causing Woody's resentment to rise while Buzz attempts to fix his 'damaged spaceship' (in reality, a piece of the packaging had been torn).
Sometime later, Mrs. Davis takes Andy and Molly on a trip to the space-themed Pizza Planet restaurant. Andy asks if he can bring any toys, and she agrees to let him take one. Woody, knowing Andy will choose Buzz, plans to trap him in a gap behind Andy's desk by using RC so Andy won't find him. However the plan goes badly wrong and instead knocks him out the window into the bushes below by accident. When the other toys learn of Woody's actions, most of them think Woody tried to kill Buzz out of jealousy. They then try to attack him, but Woody is rescued when Andy, unable to find Buzz, takes Woody on the trip instead. However, Buzz manages to sneak aboard the car, intent on getting revenge on Woody.
At a stop at a Dinoco gas station to refuel the car, Woody wonders how he will get out of his punishment from the other toys and ponders how he's going to convince the toys that the whole thing was an accident. Suddenly Buzz appears, very bitter over what Woody did to him. After a conversation, the two toys begin to fight, knocking each other out of the minivan, which drives off and leaves them stranded. Luckily, Woody sees another vehicle heading for Pizza Planet and knows that he can meet Andy there. He tricks Buzz into coming with him (only because if he came home without Buzz, the other toys would attack him).
When they arrive at Pizza Planet, Woody finds Andy there, but Buzz, still thinking he's a real space ranger, climbs into a toy crane game, thinking that it's a spaceship that will take him to Emperor Zurg's location. The machine is filled with three-eyed green aliens who believe the claw is a god. Woody goes in after him, but the two eventually are found captured by Sid Phillips, who lives next door to Andy and is known to torture and destroy toys just for fun.
Sid takes them back to his house and the two desperately try to escape his room before moving day. They encounter nightmarish mutant toys that Sid has butchered and reconstructed, a la Frankenstein. Woody and Buzz react in fear, thinking that the mis-matched toys are cannibals. Meanwhile, at Andy's house, the toys continue to look for Buzz in the bushes. But when Andy and his mother come home, Andy notices that Woody's gone. The other toys wonder what has become of the two. Some are worried for both Buzz and Woody, while others express their hope that Woody has met a bad end. The next day, at Sid's house, Woody and Buzz, having been mistreated by Sid (Sid burned Woody's forehead with a magnifying glass), try to escape, only to run into Sid's crazy Bull Terrier Scud. Eventually getting out of Sid's room, Buzz comes upon a TV where he sees a commercial for the Buzz Lightyear line of toys. Watching it, he realizes that Woody was right about him: He was a toy this whole time, not a real space ranger. However, in denial (and one last desperate attempt to prove he's not a toy), Buzz tries to fly out of a window by jumping off the guardrail of the stairs on the second floor, only to fall to the floor, losing his arm in the process. He is found by Sid's little sister Hannah, who takes him away to put him in her tea party.
Woody finally finds Buzz in Hannah's room, dressed as "Mrs. Nesbit" and attending a tea party. While Woody formulates a plan of escape, Buzz is too depressed to care. When Woody throws a string of Christmas tree lights across the way to the toys in Andy's room, Buzz refuses to back him up; Woody tries to use Buzz's detached arm in a desperate attempt to convince Andy's toys that Buzz is with him, but when they see through this act, they take it as evidence that Woody truly did murder Buzz and leave him in disgust. The Mutant Toys then return and swarm over Buzz, and Woody finds that they have repaired him. However, before Woody can make friends with them, Sid returns with his new acquisition: A firework rocket. He decides to blow up Woody with it, but cannot find him as Woody hides in a milkcrate. Sid then decides to blow up Buzz instead but is stymied by rainfall. He unknowingly traps Woody in the crate by putting a heavy toolbox on top, a plans to go ahead in the morning.
Overnight, Woody tries get Buzz to help him escape however is Buzz is still depressed that he's only a toy. Woody tries to convince him that being a toy and is much better than being a Space Ranger, and Andy still thinks he's the best thing in world. Buzz doesn't know why Andy would want him, and Woody explains while coming to terms with his own feelings of resentment:
Why would Andy want you?! Look at you! You're a Buzz Lightyear. Any other toy would give up his moving parts just to be you. You've got wings, you glow in the dark, you talk, your helmet does that... that whoosh thing. You are a COOL toy... as a matter of fact you're too cool. I mean -- I mean what chance does a toy like me have against a Buzz Lightyear action figure?
As Woody sadly states that he should be the one taped to Sid's rocket, Buzz looks at his boot where Andy has signed his name, helping his realize how much Andy loves him and how being a toy isn't too bad. The two try to escape (although Buzz accidentally knocks the toolbox on Woody when trying to get the milkcrate off of him). Unfortunately, Sid wakes up and takes Buzz out to blow him up, leaving Woody alone in the room. Even worse, Andy and his family are getting ready to move, with Andy depressed over having seemingly lost Woody and Buzz having only been able to find Buzz's cardboard spaceship and his cowboy hat. Woody calls out to the Mutant Toys to tell them a plan to escape. After a daring escape through the house and past Scud, Woody and the mutants end up in the yard with Sid. They decide to break the rules and they allow Sid to see that they can move on their own. Woody even speaks to him through his voicebox, telling him that his toys are sick of being tortured, then with his own voice tells him (in a sinister way) to play nice. This freaks Sid out and he runs into the house screaming, where his sister frightens him with her new doll Sally (a possible replacement for her original doll Janie, which was destroyed by Sid).
Now freed from Sid, Woody and Buzz try to catch Andy's moving van just as it is pulling away from the house. After saying farewell to the Mutant Toys, They manage to climb onto the moving truck, but Scud chases after them and tries to pull Woody off the truck. Buzz tackles the dog and is left behind. Woody tries rescuing Buzz with Andy's RC car, but the other toys, still thinking Woody is eliminating fellow toys, attack the cowboy and toss him off the truck. Having evaded Scud, Buzz and RC pickup Woody and continue after the truck. Upon seeing Woody riding back in the RC car with Buzz, they realize their mistake and try to help them both back on the truck. But the RC car's batteries run out, and they are left stranded -- until Woody realizes he can rescue them by igniting Buzz's rocket. He even manages to save RC by tossing him into the back of the moving van before they soar into the air. Buzz opens his wings to free himself from the rocket before it explodes, gliding with Woody to land safely into a box in the van, right next to Andy.
On Christmas Eve at the new house, the two toys, now friends, prepare another reconnaissance mission to find out what new toys Andy is getting, with the toys less worried about the new ones. Mr. Potato Head is pleased to find out that Molly has been given a new Mrs. Potato Head. When discussing being replaced by a new toy (like Woody was almost replaced by Buzz), Woody poses the question to Buzz, "What could Andy possibly get that is worse than you?" The answer comes in the form of Andy's first present, a puppy (which makes Woody and Buzz feel quite uneasy).