Old-fashioned cowboy doll Woody is coordinating a reconnaissance mission around his owner Andy's birthday party in the days before Andy's family move to their new house. To Woody's dismay, Andy receives a new action figure in the form of space ranger Buzz Lightyear, whose impressive features soon see Buzz replacing Woody as Andy's favorite toy. Woody - the former de facto leader of Andy's toys - is disappointed by his replacement and resentful towards Buzz. For his part, Buzz does not understand that he is a toy. Instead he believes himself to be an actual space ranger, seeing Woody as an interference in his 'mission'.