Like most other kids his age, Andy (voice of John Morris) has a lot of toys in his bedroom, and his favorite is his talking, pull-string cowboy. Little does the kid realize, however, that Woody (voice of TOM HANKS) and the rest of the toys only pretend to be inanimate when he and other humans are around, and otherwise are alive when they're just among their own kind.
With Woody as their unelected leader, the various toys -- including Mr. Potato Head (voice of DON RICKLES), Slinky Dog (voice of JIM VARNEY), Rex the tyrannosaurus (voice of WALLACE SHAWN), Hamm the piggy bank (voice of JOHN RATZENBERGER) and Bo Peep (voice of ANNIE POTTS), among others -- are always worried when a new toy arrives in the house.
Since they're moving to a new home soon, Andy's mom moves up his birthday celebration, and that means the arrival of space ranger toy Buzz Lightyear (voice of TIM ALLEN), who arrives with all of the latest cool gizmos and gadgets, all of which impress not only Andy, but the other toys as well. That is, except for Woody who's jealous of the attention being diverted away from him and can't believe that Buzz thinks he's the real character and not a toy replica.
Woody's jealousy gets the better of him, and Buzz ends up knocked out the bedroom window. Realizing he must retrieve his rival in order to keep the rest of the toys from turning on him, Woody sets out to do just that. In doing so, however, that takes him out into the real world where various dangers lurk, including the next door neighbor teen, Sid (voice of ERIK VON DETTEN), who enjoys abusing toys (not realizing they're sentient beings), and eventually gets his hands on both Woody and Buzz.