TO PULL THE PLUG

What would be the equivalent in Spanish?

Today's  activities for students of C1:

1) Well, today we will have our first video class!!! I'm so nervous!
     If you have not received the link through email, here you have it.
       group A (17:00-19:00)
       group B (19:00-21:00)
  Let's see how it goes!

2) One of the things we are going to do is read this story. Do you have green fingers?
3) Happy stories amid the coronavirus quarantine! Read the articles and do the corresponding activities.