Are you a Mariana expert?
It's time to prove it. Take our quiz and show us that you're the Mariana trivia master. If you need to do a bit of homework (don't worry, we won't tell anybody) then watch the most recent episodes of The Fosters season 4.
What score did you get? Share your results and then challenge your friends.
The season 5 premiere will be available to stream from July 11.