UpdraftPlus is a free WordPress plugin that allows users to easily backup their website and files to cloud storage services like Dropbox and Google Drive. The summary outlines a 3 step process to install and set up UpdraftPlus: 1. Install the UpdraftPlus plugin through your WordPress dashboard and activate it. 2. Choose backup settings like scheduling automatic backups or doing one-time manual backups, and set up a remote storage location like Google Drive by connecting your account. 3. Backups can then be restored through UpdraftPlus by selecting the desired backup file and choosing which files and components to restore.