Identify risks / scenarios and prioritize them based on their probability of occurring and their impact. Focus on the highest ranking events. Define the timeline of the scenario and it's quantifiable impact.
Generate options of how you could address the impending scenario. Organize by Must Do, Should Do and Could Do.
Must Immediate & preventative measures to reduce risks
Should Triggered measures which will be implemented if X occurs
Could Triggered measures which will have significant tradeoffs