As soon as you click on a link in Google, you are directed to the most recent version of the content.
Yet for various reasons Google keeps an older version of website content in it's "cache". This cache can be considered as a backup, and is updated regularly and rapidly (this depends on the websites popularity and new content frequency).
To access the cached page you will need to hover your mouse over the link, where a green triangle will appear?. As soon as you click on this triangle cached
will appear in the drop down menu.
Click on the button labeled Cached
and you will be able to access the last version that Google saved of your page. At the top of the page you will see the date and time of the last version of the page saved by google
With luck on your side, Google may not have updated its cache and you can retrieve the content. If so, go to Step 2.