The purpose of this study was to investigate the beginning of story comprehension in toddlers. Nineteen toddlers aged from 1 to 3 years watched animated cartoons. It consisted of two parts; one was the introductory part (`Introduction') and the other was 4 kinds of short stories. `Introduction' was more dynamic than the story part, but there was no consistent plot in it. Watching time and saccadic eye movement while they watched them were analyzed. Saccadic eye movements of one year old children were more frequent when they watched `Introduction', but the reverse tendency was found in three year old children. These results were interpreted that dynamic movements of each scene attracted one year old children, and three year old children were interested in the stories themselves rather than character' movements, and the shift of their interests of animated stories might happen during these two years.