Prevent Default Language

The CMS Questions
2

You can either filter pages by language using a custom filter, e.g.

$articles = $page->children()->visible()->filter(function($child) {
     return site()->language()->code() == $child->language()->code();
});

http://forum.getkirby.com/t/how-to-avoid-automatic-fallback-for-translations/1705

or in case of a single page:

page('mypage')->content('en');

(use an if statement to check for $site->language()->code() and a variable, of course, instead of hard-coding the language)