DISRUPT! The home for news and information about the Mustard Seeds of F3 Nation. Welcome to the online home of The F3 Upstarts known as Mustard Seeds. Workout Locations Use map to find a Mustard Seed workout location near you.>> Workout Schedule Search by day of week or workout name.>> Five Core Principles No matter where you post, every workout has these.>> The Mission of F3 More than a workout. Learn more about our mission.>>