We exist to mobilize, resource, and empower communities (which we call microchurches) to proclaim and demonstrate the good news of the kingdom of God to our city and beyond. Our name is a tribute to the underground church of history, characterized by sacrificial faith in the face of danger, oppression, and even death. We honor that memory and hope to represent that church in our city. We provide services, such as our Sunday morning Crucible service, to create places of community and change for those doing mission in the Tampa Bay area.