Mission” use 1 plugin and it’s for the contact form. You can find it in the Plugin folder in the WP folder with the theme and dummy content. Simply copy the directory in the plugin directory of your WP installation and don’t forget to activate it in your theme. A new tab called “Contact” will appear in your admin panel and that’s where you will create your contact form. For more instruction on how the plugin work, simply visit the plugin site : http://wordpress.org/extend/plugins/contact-form-7/

Source & Credits