PLUGIN: Where pages can be asked to slide into view, instead of photos?

Going to further look into this, but my search skills suck!!! *I’m checking out Plugins here, as well as *shrug* might be a Theme with the option?

*This all started with trying to figure out how Owl Concept made their epic page content, sliding in like that — How did they do this? And can similar be done using sliders (to display pages, on a click command, instead of instead of just displaying photos?)

Thanks, all!