All you need to do is download the Plex server on your laptop. Then install the Plex app on your Fire Stick. The setup process is a bit challenging. But once you have everything set up properly, you’ll see all the videos and audio files. Just tap on any video you want to watch, press the play button, and you are good to go. Remember, to use Plex, both your Fire Stick and laptop should be connected to the same Wi-Fi network.