To activate Pluto TV on Amazon Fire Stick, start by downloading the Pluto TV app from the Amazon App Store. Once installed, open the app and go to the activation screen where you’ll find a unique code. On another device, visit the pluto.tv/activate website and sign in or create a free account. Enter the activation code displayed on your Fire Stick to link your device. After completing the pluto tv activate process, you can instantly stream movies, shows, and live TV channels for free. It’s quick, simple, and ensures a smooth entertainment experience on your Fire Stick.