The past perfect refers to a time earlier than before now. It is used to make it clear that one event happened before another in the past. 

The Minions made a plan to escape the prison. While the escape is happening something else is going on.

Prison Break Minions - All Narrative Tenses

prison-break-minions-all-narrative-tenses

Let's do English ESL general grammar practice. The past perfect refers to a time earlier than before now. It is used to make it clear that one event happened be…