Railroading Paradise chronicles thebitter tug-of-warbetween efforts to preserve O‘ahu and pressures for new housing and growth—seen through the eyes of the largest environmental group in Hawai‘i as they grapple with whether or not to support the HART rail project. With fly-on-the-wall coverage of Sierra Club deliberations andextensive interviews with a broad range of expertsdiscussing the island’s future, the documentary zeroes in on the concern that O‘ahu has reached a fundamentaltipping point.