Welcome to Eclipse Phase: you're an agent of Firewall, the secret organization determined to identify and stop Existential Threats before they can destroy what's left of humanity. Like most Firewall agents, you maintain a cover identity and a "normal" life… but must be prepared to spring into action when the call comes.
You're currently living on Ecstatic Metamorphosis, a traveling carrier ship that survived The Fall of Earth and is now part of an anarchist "scum swarm" traveling between Mars and Titan. It's a wild and crazy place, full of transhumanist body hackers, criminal smugglers, uplifted octopus gangs, gutterpunk anarchist party fiends… and more. You've received a coded message from your Firewall handler: it's time to suit up and save the world.