Fallout 4 Atlas

The Nuclear Option Main Story, The Railroad Quest

This quest will be triggered or can be aquired when you complete Rockets' Red Glare quest.

Related points of interest

Stages of "The Nuclear Option" quest

1. Talk to Desdemona

After defeating the Brotherhood of Steel, I need to check in with Desdemona to find out how we're going to deal with the Institute.

Talk to Desdemona

2. Talk to Z1-14

It's time to finally put the Railroad's plan into action. I need to find Z1-14 in the Institute and let him know we're ready.

Talk to Z1-14

3. Kill everyone in the Relay Control Room

4. Talk to Desdemona

Talk to Desdemona

Desdemona will give you Fusion Pulse Charge.

Talk to Desdemona

5. Reach the Reactor

Z1-14 has brought Railroad members into the Institute. I need to reach the reactor and place a Fusion Pulse Charge on it so we can destroy the entire facility remotely.

First, you need to proceed through the old part of the Institute. There is a fusion core generator here.

Reach the Reactor

When you get to the central part of the Insitute, the next stage will begin.

Reach the Reactor

6. Use Terminal to Override Institute Lockdown

The only way to reach the Institute's reactor is through a terminal in the Director's quarters.

Terminal is in Father's quarters. Use the main elevator to get there. Unlock it and select Master Security Lockdown Override.

Use Terminal to Override Institute Lockdown

Use Terminal to Override Institute Lockdown

You can also talk to dying Father and you can try to convince him to help you. If you succeed, he will give you an access code to turn off some of the synths. To do it, use his terminal and select Director Access: Synth Shutdown.

Use Terminal to Override Institute Lockdown

7. Reach the Reactor

The path to the Institute reactor is now unlocked; I need to pass through the Advanced Systems lab to reach it.

Reach the Reactor

Reach the Reactor

8. Plant Fusion Pulse Charge Inside Reactor

We've arrived at the Institute reactor. Once the Fusion Pulse Charge has been planted, we can finally destroy the Institute once and for all.

9. Talk to Desdemona

The charge is in place; we need to get out of the Institute and reach a safe distance before it can be detonated.

Talk to Desdemona

10. Speak to Shaun

Speak to Shaun

11. Speak to Tinker Tom

Speak to Tinker Tom

12. Step Into the Relay

13. Use the Detonator

We've successfully made it out of the Institute. All that's left to do now is push the button that will destroy them completely.

Use the Detonator

Use the Detonator

14. Talk to Desdemona

It's over. The Institute has been destroyed, and the Railroad stands victorious.

Talk to Desdemona

15. Quest completed